Vulnerability · Published Apr 21, 2026 · Assigned by GitHub_M

CVE-2026-41063WWBN AVideo has incomplete fix for CVE-2026-33500 (XSS)

Medium 5.4

In plain English

A medium-severity cross-site scripting in AVideo from WWBN. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 88.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

WWBN AVideo is an open source video platform. In versions 29.0 and below, an incomplete XSS fix in AVideo's `ParsedownSafeWithLinks` class overrides `inlineMarkup` for raw HTML but does not override `inlineLink()` or `inlineUrlTag()`, allowing `javascript:` URLs in markdown link syntax to bypass sanitization. Commit cae8f0dadbdd962c89b91d0095c76edb8aadcacf contains an updated fix.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	wwbn/avideo	no fix listed	GHSA-m7r8-6q9j-m2hc

Affected products (as reported)

Vendor	Product	Versions
WWBN	AVideo	<= 29.0

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-m7r8-6q9j-m2hc x_refsource_CONFIRM
https://github.com/WWBN/AVideo/security/advisories/GHSA-72h5-39r7-r26j x_refsource_MISC
https://github.com/WWBN/AVideo/commit/3ae02fa240939dbefc5949d64f05790fd25d728d x_refsource_MISC
https://github.com/WWBN/AVideo/commit/cae8f0dadbdd962c89b91d0095c76edb8aadcacf x_refsource_MISC