CVE-2026-86305

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory published 2026-09-07. a secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: Elevated riskExposed: 0

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

A security flaw has been discovered in light0011 cms c774dce31c6df0055568a8d5c53d964d99be199d/f72cf46f601efb2a0618c3814cc2f61380b38930. Affected by this issue is the function Upload::upload of the file ThinkPHP/Library/Think/Upload.class.php. Performing a manipulation results in unrestricted upload. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3
7.3
EG Score
7.3(high)
EG Risk
64(Attend)
EG Risk 64/100SSVC: Attend

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
Severity73% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

September 7, 2026

Last Modified

September 11, 2026

Advisory Details (2)

Auto-updated Sep 7, 2026
No patch confirmed yet.
generic

GitHub - light0011/cms: 基于bootstrap与thinkphp做的新闻内容管理系统，有登陆注册、发表文章、评论、投票等常用功能 · GitHub

https://github.com/light0011/cms/
generic

Public upload endpoint accepts unrestricted file types · Issue #9 · light0011/cms · GitHub

https://github.com/light0011/cms/issues/9

Vendor Advisories for CVE-2026-86305(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 27× in last 7d / 60× 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.

  1. 2026-09-20 13:51 UTCGHSA enrichment
  2. 2026-09-20 02:58 UTCGHSA enrichment
  3. 2026-09-19 16:04 UTCEG score recompute
  4. 2026-09-19 16:04 UTCGHSA enrichment
  5. 2026-09-19 05:11 UTCEG score recompute
  6. 2026-09-19 05:11 UTCGHSA enrichment
  7. 2026-09-18 19:28 UTCEPSS rescore
  8. 2026-09-18 18:17 UTCGHSA enrichment
  9. 2026-09-18 07:14 UTCGHSA enrichment
  10. 2026-09-17 20:21 UTCEG score recompute
  11. 2026-09-17 20:21 UTCGHSA enrichment
  12. 2026-09-17 19:32 UTCEPSS rescore
  13. 2026-09-17 08:12 UTCGHSA enrichment
  14. 2026-09-16 21:18 UTCEG score recompute
  15. 2026-09-16 21:18 UTCGHSA enrichment
  16. 2026-09-16 14:09 UTCEPSS rescore
  17. 2026-09-16 10:16 UTCEG score recompute
  18. 2026-09-16 10:16 UTCGHSA enrichment
  19. 2026-09-16 05:15 UTCEPSS rescore
  20. 2026-09-15 23:22 UTCGHSA enrichment
  21. 2026-09-15 12:28 UTCEG score recompute
  22. 2026-09-15 12:28 UTCGHSA enrichment
  23. 2026-09-15 03:12 UTCEPSS rescore
  24. 2026-09-15 03:12 UTCEPSS rescore
  25. 2026-09-15 01:35 UTCGHSA enrichment
Show 35 more
  1. 2026-09-14 14:42 UTCGHSA enrichment
  2. 2026-09-14 03:49 UTCGHSA enrichment
  3. 2026-09-13 16:56 UTCEG score recompute
  4. 2026-09-13 16:56 UTCGHSA enrichment
  5. 2026-09-13 06:03 UTCGHSA enrichment
  6. 2026-09-12 19:10 UTCEG score recompute
  7. 2026-09-12 19:10 UTCGHSA enrichment
  8. 2026-09-12 08:17 UTCGHSA enrichment
  9. 2026-09-11 21:23 UTCEG score recompute
  10. 2026-09-11 21:23 UTCGHSA enrichment
  11. 2026-09-11 21:20 UTCNVD updateCVSS v4 → 5.5
  12. 2026-09-11 20:47 UTCEG score recompute
  13. 2026-09-11 20:47 UTCGHSA enrichment
  14. 2026-09-11 20:43 UTCMITRE cvelistV5CVSS v4 → 6.9
  15. 2026-09-11 19:01 UTCEG score recompute
  16. 2026-09-11 19:01 UTCGHSA enrichment
  17. 2026-09-11 14:53 UTCEPSS rescore
  18. 2026-09-11 14:53 UTCEPSS rescore
  19. 2026-09-11 07:57 UTCGHSA enrichment
  20. 2026-09-10 21:04 UTCGHSA enrichment
  21. 2026-09-10 10:11 UTCEG score recompute
  22. 2026-09-10 10:11 UTCGHSA enrichment
  23. 2026-09-09 23:18 UTCGHSA enrichment
  24. 2026-09-09 11:35 UTCGHSA enrichment
  25. 2026-09-09 00:41 UTCEG score recompute
  26. 2026-09-09 00:41 UTCGHSA enrichment
  27. 2026-09-08 22:01 UTCEPSS rescore
  28. 2026-09-08 13:48 UTCGHSA enrichment
  29. 2026-09-08 11:18 UTCGHSA enrichment
  30. 2026-09-08 00:25 UTCEG score recompute
  31. 2026-09-08 00:24 UTCGHSA enrichment
  32. 2026-09-07 13:31 UTCEG score recompute
  33. 2026-09-07 13:21 UTCNVD updateCVSS v4 → 5.5
  34. 2026-09-07 12:58 UTCEG score recompute
  35. 2026-09-07 12:56 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-86305?
CVE-2026-86305 is a high vulnerability published on September 7, 2026. A security flaw has been discovered in light0011 cms c774dce31c6df0055568a8d5c53d964d99be199d/f72cf46f601efb2a0618c3814cc2f61380b38930. Affected by this issue is the function Upload::upload of the file ThinkPHP/Library/Think/Upload.class.php. Performing a manipulation results in unrestricted…
When was CVE-2026-86305 disclosed?
CVE-2026-86305 was first published in the National Vulnerability Database on September 7, 2026, with the most recent update on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86305 actively exploited?
CVE-2026-86305 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 69.0% of all scored CVEs.
What is the CVSS score of CVE-2026-86305?
CVE-2026-86305 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-86305?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86305, 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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