CVE-2026-40925

HIGHNVD 8.38.3—
EchelonGraph scoreMEDIUM confidence

Score 8.3 from GitHub Security Advisory (severity: HIGH) published 2026-04-14. NVD baseline CVSS 8.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
8.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.3Exploit: NoneExposed: 0

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

WWBN AVideo is an open source video platform. In versions 29.0 and prior, objects/configurationUpdate.json.php (also routed via /updateConfig) persists dozens of global site settings from $_POST but protects the endpoint only with User::isAdmin(). It does not call forbidIfIsUntrustedRequest(), does not verify a globalToken, and does not validate the Origin/Referer header. Because AVideo intentionally sets session.cookie_samesite=None to support cross-origin iframe embedding, a logged-in administrator who visits an attacker-controlled page will have the browser auto-submit a cross-origin POST that rewrites the site's encoder URL, SMTP credentials, site `` HTML, logo, favicon, contact email, and more in a single request. Commit f9492f5e6123dff0292d5bb3164fde7665dc36b4 contains a fix.

CVSS v3
8.3
EG Score
8.3(medium)
EPSS
6.9%
KEV
Not listed

Published

April 21, 2026

Last Modified

April 24, 2026

Advisory Details (2)

Auto-updated May 4, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

CSRF in configurationUpdate.json.php Enables Full Site Configuration Takeover Including Encoder URL and SMTP Credentials · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-vvfw-4m39-fjqf
generic

fix: Add request validation to prevent untrusted access in configurat… · WWBN/AVideo@f9492f5 · GitHub

https://github.com/WWBN/AVideo/commit/f9492f5e6123dff0292d5bb3164fde7665dc36b4

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
composerwwbn/avideo—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
wwbn/avideo10.4 ... 29.0 (18 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 37× 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 124 total refreshes for this CVE.

  1. 2026-07-15 16:57 UTCEPSS rescore
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  24. 2026-06-25 13:49 UTCEPSS rescore
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  1. 2026-06-24 14:05 UTCEPSS rescore
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  3. 2026-06-22 14:25 UTCEPSS rescore
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  13. 2026-06-15 17:49 UTCEPSS rescore
  14. 2026-06-15 05:17 UTCEG score recompute
  15. 2026-06-15 05:17 UTCGHSA enrichment
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  17. 2026-06-14 17:27 UTCGHSA enrichment
  18. 2026-06-13 23:00 UTCEPSS rescore
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  21. 2026-06-12 05:21 UTCEG score recompute
  22. 2026-06-12 05:21 UTCGHSA enrichment
  23. 2026-06-11 17:33 UTCEG score recompute
  24. 2026-06-11 17:33 UTCGHSA enrichment
  25. 2026-06-11 14:00 UTCEPSS rescore
  26. 2026-06-10 22:18 UTCEPSS rescore
  27. 2026-06-10 15:28 UTCEG score recompute
  28. 2026-06-10 15:28 UTCGHSA enrichment
  29. 2026-06-10 13:22 UTCEPSS rescore
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  31. 2026-06-10 03:41 UTCEG score recompute
  32. 2026-06-10 03:41 UTCGHSA enrichment
  33. 2026-06-09 15:53 UTCEG score recompute
  34. 2026-06-09 15:53 UTCGHSA enrichment
  35. 2026-06-09 04:06 UTCEG score recompute
  36. 2026-06-09 04:06 UTCGHSA enrichment
  37. 2026-06-08 14:17 UTCEPSS rescore
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  39. 2026-06-08 12:21 UTCEG score recompute
  40. 2026-06-08 12:21 UTCGHSA enrichment
  41. 2026-06-08 00:30 UTCEG score recompute
  42. 2026-06-08 00:30 UTCGHSA enrichment
  43. 2026-06-07 15:25 UTCEPSS rescore
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  45. 2026-06-07 12:20 UTCEG score recompute
  46. 2026-06-07 12:20 UTCGHSA enrichment
  47. 2026-06-07 00:33 UTCEG score recompute
  48. 2026-06-07 00:33 UTCGHSA enrichment
  49. 2026-06-06 13:47 UTCEPSS rescore
  50. 2026-06-06 13:47 UTCEPSS rescore
  51. 2026-06-06 08:15 UTCEG score recompute
  52. 2026-06-06 08:15 UTCGHSA enrichment
  53. 2026-06-05 22:47 UTCEPSS rescore
  54. 2026-06-05 19:44 UTCEG score recompute
  55. 2026-06-05 19:44 UTCGHSA enrichment
  56. 2026-06-05 06:10 UTCEPSS rescore
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  58. 2026-06-05 03:47 UTCEG score recompute
  59. 2026-06-05 03:47 UTCGHSA enrichment
  60. 2026-06-04 14:23 UTCEG score recompute
  61. 2026-06-04 14:23 UTCGHSA enrichment
  62. 2026-06-04 13:12 UTCEPSS rescore
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  64. 2026-06-03 16:57 UTCEG score recompute
  65. 2026-06-03 16:57 UTCGHSA enrichment
  66. 2026-06-03 05:09 UTCEG score recompute
  67. 2026-06-03 05:09 UTCGHSA enrichment
  68. 2026-06-02 20:13 UTCEPSS rescore
  69. 2026-06-02 17:02 UTCEG score recompute
  70. 2026-06-02 17:01 UTCGHSA enrichment
  71. 2026-06-02 05:13 UTCEG score recompute
  72. 2026-06-02 05:13 UTCGHSA enrichment
  73. 2026-06-01 15:40 UTCEG score recompute
  74. 2026-06-01 15:40 UTCGHSA enrichment
  75. 2026-06-01 13:52 UTCEPSS rescore

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-40925?
CVE-2026-40925 is a high vulnerability published on April 21, 2026. WWBN AVideo is an open source video platform. In versions 29.0 and prior, objects/configurationUpdate.json.php (also routed via /updateConfig) persists dozens of global site settings from $POST but protects the endpoint only with User::isAdmin(). It does not call forbidIfIsUntrustedRequest(), does…
When was CVE-2026-40925 disclosed?
CVE-2026-40925 was first published in the National Vulnerability Database on April 21, 2026, with the most recent update on April 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-40925 actively exploited?
CVE-2026-40925 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-40925?
CVE-2026-40925 has a CVSS v3 base score of 8.3 (NVD).
How do I remediate CVE-2026-40925?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-40925, 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.

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