CVE-2021-40639

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

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

Improper access control in Jfinal CMS 5.1.0 allows attackers to access sensitive information via /classes/conf/db.properties&config=filemanager.config.js.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
64.6%
KEV
Not listed

Published

September 15, 2021

Last Modified

July 9, 2026

Advisory Details (2)

Auto-updated Jul 6, 2026
No patch confirmed yet.
generic

File reading · Issue #27 · jflyfox/jfinal_cms · GitHub

https://github.com/jflyfox/jfinal_cms/issues/27
generic

GitHub - jflyfox/jfinal_cms: jfinal cms是一个java开发的功能强大的信息咨询网站，采用了简洁强大的JFinal作为web框架，模板引擎用的是beetl，数据库用mysql，前端bootstrap框架。支持oauth2认证、帐号注册、密码加密、评论及回复，消息提示，网站访问量统计，文章评论数和浏览量统计，回复管理，支持权限管理。后台模块包含：栏目管理，栏目公告，栏目滚动图片，文章管理，回复管理，...

GitHub - jflyfox/jfinal_cms: jfinal cms是一个java开发的功能强大的信息咨询网站，采用了简洁强大的JFinal作为web框架，模板引擎用的是beetl，数据库用mysql，前端bootstrap框架。支持oauth2认证、帐号注册、密码加密、评论及回复，消息提示，网站访问量统计，文章评论数和浏览量统计，回复管理，支持权限管理。后台模块包含：栏目管理，栏目公告，栏目滚动图片，文章管理，回复管理，意见反馈，我的相册，相册管理，图片管理，专辑管理、视频管理、缓存更新，友情链接，访问统计，联系人管理，模板管理，组织机构管理，用户管理，角色管理，菜单管理，数据字典管理。 · GitHub

https://github.com/jflyfox/jfinal_cms

Vendor Advisories for CVE-2021-40639(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 53× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 114 total refreshes for this CVE.

  1. 2026-07-24 14:15 UTCEPSS rescore
  2. 2026-07-23 14:16 UTCEPSS rescore
  3. 2026-07-23 02:04 UTCEG score recompute
  4. 2026-07-22 22:50 UTCEG score recompute
  5. 2026-07-22 14:06 UTCEPSS rescore
  6. 2026-07-21 15:22 UTCEPSS rescore
  7. 2026-07-21 15:22 UTCEPSS rescore
  8. 2026-07-20 17:05 UTCEPSS rescore
  9. 2026-07-19 14:29 UTCEPSS rescore
  10. 2026-07-19 02:27 UTCEPSS rescore
  11. 2026-07-18 11:59 UTCOSV refresh
  12. 2026-07-18 10:02 UTCEPSS rescore
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  14. 2026-07-16 17:00 UTCEPSS rescore
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  1. 2026-07-09 19:07 UTCEPSS rescore
  2. 2026-07-09 02:55 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  3. 2026-07-09 01:24 UTCMITRE cvelistV5
  4. 2026-07-08 15:12 UTCEPSS rescore
  5. 2026-07-07 13:43 UTCEPSS rescore
  6. 2026-07-06 16:25 UTCEPSS rescore
  7. 2026-07-06 16:25 UTCEPSS rescore
  8. 2026-07-06 02:21 UTCEPSS rescore
  9. 2026-07-06 02:21 UTCEPSS rescore
  10. 2026-07-05 02:28 UTCEPSS rescore
  11. 2026-07-05 02:28 UTCEPSS rescore
  12. 2026-07-05 00:28 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  13. 2026-07-04 23:57 UTCMITRE cvelistV5
  14. 2026-07-04 06:29 UTCEPSS rescore
  15. 2026-07-04 06:29 UTCEPSS rescore
  16. 2026-07-02 16:57 UTCEPSS rescore
  17. 2026-07-01 15:04 UTCEPSS rescore
  18. 2026-06-30 23:20 UTCEPSS rescore
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  20. 2026-06-30 13:30 UTCOSV refresh
  21. 2026-06-29 14:04 UTCEPSS rescore
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  25. 2026-06-27 03:06 UTCEPSS rescore
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  31. 2026-06-23 21:31 UTCEPSS rescore
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  34. 2026-06-21 14:55 UTCEPSS rescore
  35. 2026-06-21 01:58 UTCEPSS rescore
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  37. 2026-06-19 19:24 UTCEPSS rescore
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  44. 2026-06-16 17:51 UTCEPSS rescore
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  46. 2026-06-15 17:46 UTCEPSS rescore
  47. 2026-06-14 23:15 UTCEPSS rescore
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  49. 2026-06-13 22:58 UTCEPSS rescore
  50. 2026-06-13 22:58 UTCEPSS rescore
  51. 2026-06-12 23:10 UTCEPSS rescore
  52. 2026-06-12 21:10 UTCOSV refresh
  53. 2026-06-11 13:58 UTCEPSS rescore
  54. 2026-06-11 13:58 UTCEPSS rescore
  55. 2026-06-10 22:16 UTCEPSS rescore
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  73. 2026-05-31 22:29 UTCEPSS rescore
  74. 2026-05-31 22:29 UTCEPSS rescore
  75. 2026-05-31 00:15 UTCEPSS rescore

Frequently asked(5)

What is CVE-2021-40639?
CVE-2021-40639 is a high vulnerability published on September 15, 2021. Improper access control in Jfinal CMS 5.1.0 allows attackers to access sensitive information via /classes/conf/db.properties&config=filemanager.config.js.
When was CVE-2021-40639 disclosed?
CVE-2021-40639 was first published in the National Vulnerability Database on September 15, 2021, with the most recent update on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-40639 actively exploited?
CVE-2021-40639 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 64.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-40639?
CVE-2021-40639 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2021-40639?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-40639, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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