CVE-2026-41063

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

MEDIUM
5.4
CVSS Score
Published: April 21, 2026 at 10:59 PM UTC
Updated: October 26, 2026 at 09:10 PM UTC
1 product affected across 1 vendorAVideo

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

WWBN AVideo is an open source video platform. In versions 29.0 and below, the 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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (4)

x_refsource_CONFIRMExploitMitigationVendor Advisory
Source: cverecord
https://github.com/WWBN/AVideo/security/advisories/GHSA-m7r8-6q9j-m2hc
x_refsource_MISCExploitMitigationVendor Advisory
Source: cverecord
https://github.com/WWBN/AVideo/security/advisories/GHSA-72h5-39r7-r26j

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79

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