CVE-2026-85161

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-09-03. A secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 4.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

AVideo through commit c91b5975d contains a cross-site request forgery vulnerability in removePoster.php that lacks forbidIfNotPost or forbidIfInvalidToken checks. Attackers can craft malicious image tags to delete authenticated victims' live poster and thumbnail files via GET requests.

CVSS v3
4.3
EG Score
4.3MEDIUMhigh confidence
EG Risk
34
EG Risk 34/100CISA SSVC

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
Severity43% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.1%
EPSS %ILE
3rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines 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). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 3, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Sep 3, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

AVideo removePoster.php Cross-Site Request Forgery File Deletion | Advisories | VulnCheck

https://www.vulncheck.com/advisories/avideo-removeposter-php-cross-site-request-forgery-file-deletion
github Patch Available🟡 PoC Available

CSRF: plugin/Live/removePoster.php has no forbidIfNotPost or forbidIfInvalidToken, letting a cross-site GET delete the victim's live poster and thumbnail files · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-4h63-5723-hq25

Vendor Advisories for CVE-2026-85161(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 15× in last 7d / 68× 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. 2026-09-29 05:32 UTCEG score recompute
  2. 2026-09-29 05:32 UTCGHSA enrichment
  3. 2026-09-28 13:52 UTCEPSS rescore
  4. 2026-09-28 05:28 UTCGHSA enrichment
  5. 2026-09-27 05:24 UTCEG score recompute
  6. 2026-09-27 05:24 UTCGHSA enrichment
  7. 2026-09-26 15:59 UTCEPSS rescore
  8. 2026-09-26 04:26 UTCEG score recompute
  9. 2026-09-26 04:25 UTCGHSA enrichment
  10. 2026-09-25 00:41 UTCEG score recompute
  11. 2026-09-25 00:41 UTCGHSA enrichment
  12. 2026-09-24 14:04 UTCEPSS rescore
  13. 2026-09-24 00:37 UTCGHSA enrichment
  14. 2026-09-23 00:34 UTCEG score recompute
  15. 2026-09-23 00:34 UTCGHSA enrichment
  16. 2026-09-22 16:01 UTCEPSS rescore
  17. 2026-09-22 00:31 UTCEG score recompute
  18. 2026-09-22 00:31 UTCGHSA enrichment
  19. 2026-09-21 21:09 UTCEPSS rescore
  20. 2026-09-21 00:27 UTCEG score recompute
  21. 2026-09-21 00:27 UTCGHSA enrichment
  22. 2026-09-20 20:16 UTCEPSS rescore
  23. 2026-09-20 00:23 UTCEG score recompute
  24. 2026-09-20 00:23 UTCGHSA enrichment
  25. 2026-09-19 00:20 UTCEG score recompute
Show 43 more
  1. 2026-09-19 00:20 UTCGHSA enrichment
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 00:17 UTCEG score recompute
  4. 2026-09-18 00:17 UTCGHSA enrichment
  5. 2026-09-17 19:32 UTCEPSS rescore
  6. 2026-09-17 00:14 UTCEG score recompute
  7. 2026-09-17 00:14 UTCGHSA enrichment
  8. 2026-09-16 14:09 UTCEPSS rescore
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-16 00:10 UTCEG score recompute
  11. 2026-09-16 00:10 UTCGHSA enrichment
  12. 2026-09-15 03:12 UTCEPSS rescore
  13. 2026-09-15 03:12 UTCEPSS rescore
  14. 2026-09-15 00:06 UTCGHSA enrichment
  15. 2026-09-14 00:02 UTCEG score recompute
  16. 2026-09-14 00:02 UTCGHSA enrichment
  17. 2026-09-12 23:59 UTCEG score recompute
  18. 2026-09-12 23:59 UTCGHSA enrichment
  19. 2026-09-11 23:56 UTCEG score recompute
  20. 2026-09-11 23:56 UTCGHSA enrichment
  21. 2026-09-11 14:53 UTCEPSS rescore
  22. 2026-09-11 14:53 UTCEPSS rescore
  23. 2026-09-10 23:52 UTCEG score recompute
  24. 2026-09-10 23:52 UTCGHSA enrichment
  25. 2026-09-09 23:29 UTCEG score recompute
  26. 2026-09-09 23:29 UTCGHSA enrichment
  27. 2026-09-08 22:01 UTCEPSS rescore
  28. 2026-09-08 20:49 UTCEG score recompute
  29. 2026-09-08 20:49 UTCGHSA enrichment
  30. 2026-09-07 15:46 UTCGHSA enrichment
  31. 2026-09-06 15:43 UTCEG score recompute
  32. 2026-09-06 15:43 UTCGHSA enrichment
  33. 2026-09-06 13:48 UTCEPSS rescore
  34. 2026-09-05 15:39 UTCEG score recompute
  35. 2026-09-05 15:39 UTCGHSA enrichment
  36. 2026-09-05 15:31 UTCEPSS rescore
  37. 2026-09-04 15:35 UTCEG score recompute
  38. 2026-09-04 15:35 UTCGHSA enrichment
  39. 2026-09-03 15:31 UTCEG score recompute
  40. 2026-09-03 14:35 UTCEG score recompute
  41. 2026-09-03 13:14 UTCEG score recompute
  42. 2026-09-03 11:32 UTCEG score recompute
  43. 2026-09-03 11:29 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-85161?
CVE-2026-85161 is a medium vulnerability published on September 3, 2026. AVideo through commit c91b5975d contains a cross-site request forgery vulnerability in removePoster.php that lacks forbidIfNotPost or forbidIfInvalidToken checks. Attackers can craft malicious image tags to delete authenticated victims' live poster and thumbnail files via GET requests.
When was CVE-2026-85161 disclosed?
CVE-2026-85161 was first published on September 3, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85161 actively exploited?
CVE-2026-85161 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-85161?
CVE-2026-85161 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-85161?
A fix for CVE-2026-85161 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-85161 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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