CVE-2026-41063CWE-79

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

Medium · published April 21, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
23.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00321 · 23.9th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-04-21T22:59Z
EPSS history
Timeline
  • 21 APR 22:59Z
    WWBN AVideo has incomplete fix for CVE-2026-33500 (XSS)
    cvelistv5