CVE-2026-89244

MEDIUMPre-NVD 6.16.1
EchelonGraph scoreMEDIUM confidence

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

Score 6.1 from GitHub Security Advisory published 2026-09-11. A secondary CVSS source baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source

Also known asEUVD-2026-76056 (ENISA EUVD) · GHSA-7c8p-rvh6-cm6v (GitHub Security Advisories)Source: ENISA EUVD

6.1EG
EchelonGraph verdictMonitorNo 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).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.1Exploit: None knownExposed services: Not assessed

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

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a reflected cross-site scripting vulnerability in plugin/Gallery/view/Category.php when SubCategorys is enabled. The getBackURL parameter is echoed into an href attribute without HTML encoding, allowing attackers to inject malicious scripts that execute in visitors' browsers when they interact with the Back control.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
43
EG Risk 43/100

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)
Severity61% × 45%
Impact severity (EG Severity): CVSS 6.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
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 none (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
0.3%
EPSS %ILE
18th
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 (6.1): severity, escalated by confirmed exploitation. This CVE's 6.1 is its impact severity (EG Severity), not escalated.

EG Severity
6.1 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). 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 none (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 11, 2026

Advisory Details (2)

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

WWBN AVideo Reflected XSS via Gallery Category getBackURL | Advisories | VulnCheck

https://www.vulncheck.com/advisories/wwbn-avideo-reflected-xss-via-gallery-category-getbackurl
GitHub advisoryMentions a patch (unverified)

Reflected XSS: Gallery `plugin/Gallery/view/Category.php` writes `$_REQUEST['getBackURL']` into an `href` with no encoding when SubCategorys is enabled · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-j2r3-gr47-rgfm

Vendor Advisories for CVE-2026-89244(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 8× in last 7d / 51× 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 118 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 18 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  3. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  4. 2026-10-29 22:25 UTCOSV refresh
  5. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  6. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  7. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  8. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  9. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  10. 2026-10-25 13:53 UTCEG score recompute
  11. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  12. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  13. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  14. 2026-10-22 12:32 UTCEG score recompute
  15. 2026-10-22 12:32 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  16. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  17. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  18. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  19. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  20. 2026-10-18 03:02 UTCEG score recompute
  21. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  22. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  23. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  24. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  25. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 16th percentile
Show 75 more
  1. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  2. 2026-10-12 14:49 UTCEG score recompute
  3. 2026-10-11 19:15 UTCEG score recompute
  4. 2026-10-11 16:32 UTCEG score recompute
  5. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  6. 2026-10-11 13:48 UTCEG score recompute
  7. 2026-10-11 06:58 UTCEG score recompute
  8. 2026-10-11 06:58 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  10. 2026-10-10 00:18 UTCEG score recompute
  11. 2026-10-10 00:18 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  12. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  13. 2026-10-08 23:36 UTCEG score recompute
  14. 2026-10-08 23:35 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  15. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  16. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  17. 2026-10-07 19:49 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  18. 2026-10-06 15:47 UTCEG score recompute
  19. 2026-10-06 15:47 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  20. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  21. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  22. 2026-10-05 14:42 UTCEG score recompute
  23. 2026-10-05 14:42 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  24. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  25. 2026-10-04 14:00 UTCEG score recompute
  26. 2026-10-04 14:00 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  27. 2026-10-03 13:18 UTCEG score recompute
  28. 2026-10-03 13:18 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  29. 2026-10-02 12:36 UTCEG score recompute
  30. 2026-10-02 12:36 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  31. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  32. 2026-10-01 10:43 UTCEG score recompute
  33. 2026-10-01 10:43 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  34. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  35. 2026-09-30 10:01 UTCEG score recompute
  36. 2026-09-30 10:01 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  37. 2026-09-29 09:19 UTCEG score recompute
  38. 2026-09-29 09:19 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  39. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  40. 2026-09-28 08:37 UTCEG score recompute
  41. 2026-09-28 08:37 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  42. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  43. 2026-09-27 07:55 UTCEG score recompute
  44. 2026-09-27 07:54 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  45. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  46. 2026-09-26 07:12 UTCEG score recompute
  47. 2026-09-26 07:12 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  48. 2026-09-25 06:30 UTCEG score recompute
  49. 2026-09-25 06:30 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  50. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  51. 2026-09-24 05:48 UTCEG score recompute
  52. 2026-09-24 05:48 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  53. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  54. 2026-09-23 05:06 UTCEG score recompute
  55. 2026-09-23 05:06 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  56. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  57. 2026-09-22 04:23 UTCEG score recompute
  58. 2026-09-22 04:23 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  59. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  60. 2026-09-21 03:41 UTCEG score recompute
  61. 2026-09-21 03:41 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  62. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  63. 2026-09-20 02:58 UTCEG score recompute
  64. 2026-09-20 02:58 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  65. 2026-09-19 02:17 UTCEG score recompute
  66. 2026-09-19 02:16 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  67. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  68. 2026-09-18 01:34 UTCEG score recompute
  69. 2026-09-18 01:34 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  70. 2026-09-17 19:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  71. 2026-09-17 00:52 UTCEG score recompute
  72. 2026-09-17 00:52 UTCGHSA enrichmentGHSA-7c8p-rvh6-cm6v · GitHub CVSS 6.1
  73. 2026-09-16 14:09 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  74. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  75. 2026-09-16 00:10 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-89244?
CVE-2026-89244 is a medium-severity vulnerability; its CVE record was published on September 11, 2026. WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a reflected cross-site scripting vulnerability in plugin/Gallery/view/Category.php when SubCategorys is enabled. The getBackURL parameter is echoed into an href attribute without HTML encoding, allowing attackers to inject…
When was CVE-2026-89244 made public?
CVE-2026-89244 was made public on August 27, 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 11, 2026; the record at its source may have been updated since.
Is CVE-2026-89244 actively exploited?
CVE-2026-89244 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (18th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-89244?
CVE-2026-89244 has a CVSS base score of 6.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-89244?
No fix for CVE-2026-89244 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 vendor advisories EchelonGraph has for CVE-2026-89244 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-89244

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