CVE-2026-89260

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-11. The CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-76133 (ENISA EUVD) · GHSA-92wh-xp96-v6mj (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan mitigationNo fix is confirmed yet: check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 7.5Exploit: No code on recordExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (VulnCheck) lists moxi624 MoguBlog versions up to and including 6.2 as affected. No release containing a fix is confirmed on record.

MoguBlog through 6.2 contains an XML external entity injection vulnerability in the WeChat callback handler at POST /wechat/wechatCheck. The WechatRestApi.index() method passes the raw request body to SignUtil.xmlToMap(), which uses an unhardened dom4j SAXReader without DTD or external-entity restrictions. Unauthenticated remote attackers can submit DOCTYPE declarations with external parameter entities to read arbitrary local files or trigger outbound HTTP requests, with resolved entities reflected in error responses.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
65
EG Risk 65/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high.
EPSS PROB
0.7%
EPSS %ILE
54th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-28). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 11, 2026

Last Modified

September 24, 2026

Advisory Details (6)

Auto-updated Sep 11, 2026
No fix on record yet.
Web page

MoguBlog through 6.2 XML External Entity Injection in the Unauthenticated WeChat Callback Endpoint | Advisories | VulnCheck

https://www.vulncheck.com/advisories/mogublog-through-6.2-xml-external-entity-injection-in-the-unauthenticated-wechat-callback-endpoint
Web page

GitHub - moxi624/mogu_blog_v2: 蘑菇博客(MoguBlog),一个基于微服务架构的前后端分离博客系统。Web端使用Vue + Element , 移动端使用uniapp和ColorUI。后端使用Spring cloud + Spring boot + mybatis-plus进行开发,使用 Jwt + Spring Security做登录验证和权限校验,使用ElasticSearch和Solr作为全文检索服务,使用Github Actions完成博客的持续集成,使用ELK收集博客日志,文件支持上传七牛云和Minio,支持Docker Compose...

GitHub - moxi624/mogu_blog_v2: 蘑菇博客(MoguBlog),一个基于微服务架构的前后端分离博客系统。Web端使用Vue + Element , 移动端使用uniapp和ColorUI。后端使用Spring cloud + Spring boot + mybatis-plus进行开发,使用 Jwt + Spring Security做登录验证和权限校验,使用ElasticSearch和Solr作为全文检索服务,使用Github Actions完成博客的持续集成,使用ELK收集博客日志,文件支持上传七牛云和Minio,支持Docker Compose脚本一键部署。 · GitHub

https://github.com/moxi624/mogu_blog_v2
Web page

蘑菇博客 发行版 - Gitee.com

https://gitee.com/moxi159753/mogu_blog_v2/releases
Web page

mogu_blog_v2/mogu_web/src/main/java/com/moxi/mogublog/web/restapi/WechatRestApi.java at 025d78c7ac7e19b1abf796fa3cc158d855723d15 · moxi624/mogu_blog_v2 · GitHub

https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_web/src/main/java/com/moxi/mogublog/web/restapi/WechatRestApi.java
Web page

mogu_blog_v2/mogu_utils/src/main/java/com/moxi/mogublog/utils/wechat/SignUtil.java at 025d78c7ac7e19b1abf796fa3cc158d855723d15 · moxi624/mogu_blog_v2 · GitHub

https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_utils/src/main/java/com/moxi/mogublog/utils/wechat/SignUtil.java
Web page

cve-request-poc/mogublog-poc/C10_wechat_callback_unsigned.py at master · LinYuanyi1/cve-request-poc · GitHub

https://github.com/LinYuanyi1/cve-request-poc/blob/master/mogublog-poc/C10_wechat_callback_unsigned.py

Vendor Advisories for CVE-2026-89260(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 65× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 153 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 53 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  2. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  3. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  4. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  5. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  6. 2026-10-28 19:21 UTCEG score recompute
  7. 2026-10-28 19:21 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  8. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  9. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  10. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  11. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  12. 2026-10-25 13:53 UTCEG score recompute
  13. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  14. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  15. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  16. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  17. 2026-10-20 19:41 UTCEG score recompute
  18. 2026-10-20 19:41 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  19. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  20. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  21. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  22. 2026-10-18 03:02 UTCEG score recompute
  23. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  24. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  25. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
Show 75 more
  1. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  2. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  3. 2026-10-13 04:58 UTCEG score recompute
  4. 2026-10-13 04:57 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  5. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  6. 2026-10-12 14:48 UTCEG score recompute
  7. 2026-10-11 22:16 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  8. 2026-10-11 19:15 UTCEG score recompute
  9. 2026-10-11 16:32 UTCEG score recompute
  10. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  11. 2026-10-11 13:48 UTCEG score recompute
  12. 2026-10-11 10:03 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  13. 2026-10-10 20:13 UTCEG score recompute
  14. 2026-10-10 20:13 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  15. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  16. 2026-10-10 08:01 UTCEG score recompute
  17. 2026-10-10 08:00 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  18. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  19. 2026-10-09 19:30 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  20. 2026-10-08 23:33 UTCEG score recompute
  21. 2026-10-08 23:32 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  22. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  23. 2026-10-08 01:08 UTCEG score recompute
  24. 2026-10-08 01:08 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  25. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  26. 2026-10-07 12:56 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  27. 2026-10-07 00:17 UTCEG score recompute
  28. 2026-10-07 00:17 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  29. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  30. 2026-10-06 12:05 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  31. 2026-10-05 23:54 UTCEG score recompute
  32. 2026-10-05 23:54 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  33. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  34. 2026-10-05 11:20 UTCEG score recompute
  35. 2026-10-05 11:20 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  36. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  37. 2026-10-04 23:08 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  38. 2026-10-04 10:56 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  39. 2026-10-03 22:35 UTCEG score recompute
  40. 2026-10-03 22:35 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  41. 2026-10-03 10:16 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  42. 2026-10-02 19:30 UTCEG score recompute
  43. 2026-10-02 19:30 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  44. 2026-10-02 07:19 UTCEG score recompute
  45. 2026-10-02 07:19 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  46. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  47. 2026-10-01 19:08 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  48. 2026-10-01 05:46 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  49. 2026-09-30 17:35 UTCEG score recompute
  50. 2026-09-30 17:35 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  51. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  52. 2026-09-30 05:24 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  53. 2026-09-29 17:09 UTCEG score recompute
  54. 2026-09-29 17:09 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  55. 2026-09-29 04:59 UTCEG score recompute
  56. 2026-09-29 04:59 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  57. 2026-09-28 16:47 UTCEG score recompute
  58. 2026-09-28 16:47 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  59. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  60. 2026-09-28 04:22 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  61. 2026-09-27 16:11 UTCEG score recompute
  62. 2026-09-27 16:10 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  63. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  64. 2026-09-27 04:00 UTCEG score recompute
  65. 2026-09-27 04:00 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  66. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  67. 2026-09-26 15:48 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  68. 2026-09-26 03:37 UTCEG score recompute
  69. 2026-09-26 03:36 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  70. 2026-09-25 15:22 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  71. 2026-09-25 03:10 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  72. 2026-09-24 14:53 UTCEG score recompute
  73. 2026-09-24 14:53 UTCGHSA enrichmentGHSA-92wh-xp96-v6mj · GitHub severity HIGH · GitHub CVSS 7.5
  74. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  75. 2026-09-24 02:42 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-89260?
CVE-2026-89260 is a high-severity vulnerability; its CVE record was published on September 11, 2026. MoguBlog through 6.2 contains an XML external entity injection vulnerability in the WeChat callback handler at POST /wechat/wechatCheck. The WechatRestApi.index() method passes the raw request body to SignUtil.xmlToMap(), which uses an unhardened dom4j SAXReader without DTD or external-entity…
When was CVE-2026-89260 made public?
CVE-2026-89260 was made public on September 11, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on September 11, 2026. EchelonGraph's copy of the record carries a last-modified date of September 24, 2026; the record at its source may have been updated since.
Is CVE-2026-89260 actively exploited?
CVE-2026-89260 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (54th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-89260?
CVE-2026-89260 has a CVSS base score of 7.5 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-89260?
No fix for CVE-2026-89260 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (VulnCheck) lists moxi624 MoguBlog versions up to and including 6.2 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-89260 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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