What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-21 · updated 2026-10-26
• Weakness: CWE-79

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 products

• WWBN AVideo: through 29.0

References

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

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