CVE-2026-41056HIGH 8.1EPSS p25.1%

CVE-2026-41056CVE-2026-41056

Description

WWBN AVideo is an open source video platform. In versions 29.0 and below, the `allowOrigin($allowAll=true)` function in `objects/functions.php` reflects any arbitrary `Origin` header back in `Access-Control-Allow-Origin` along with `Access-Control-Allow-Credentials: true`. This function is called by both `plugin/API/get.json.php` and `plugin/API/set.json.php` — the primary API endpoints that handle user data retrieval, authentication, livestream credentials, and state-changing operations. Combined with the application's `SameSite=None` session cookie policy, any website can make credentialed cross-origin requests and read authenticated API responses, enabling theft of user PII, livestream keys, and performing state changes on behalf of the victim. Commit caf705f38eae0ccfac4c3af1587781355d24495e contains a fix.

Scoring

CVSS 3.18.1 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
EPSS0.34% probability of exploitation · percentile 25.1% · 2026-06-18T12:00:27Z
Published2026-04-21
Last modified2026-04-23

Underlying weaknesses· 1

CWE-942

References

  1. https://github.com/WWBN/AVideo/commit/caf705f38eae0ccfac4c3af1587781355d24495e
  2. https://github.com/WWBN/AVideo/security/advisories/GHSA-ccq9-r5cw-5hwq
  3. https://github.com/WWBN/AVideo/security/advisories/GHSA-ccq9-r5cw-5hwq

1

TypeTargetConfidenceTier
WeaknessPermissive Cross-domain Security Policy with Untrusted Domainscwe-9420%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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CVE-2026-41064
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.