Vulnerability · Published Mar 22, 2026 · Assigned by GitHub_M

CVE-2026-33295AVideo Vulnerable to Stored XSS via Unescaped Video Title in CDN downloadButtons.php

High 8.2

In plain English

A high-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 13% of all known vulnerabilities).

Severity (CVSS 4.0)8.2High

Exploit odds (30 days)0.2%top 87.5% 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. Prior to version 26.0, WWBN/AVideo contains a stored cross-site scripting vulnerability in the CDN plugin's download buttons component. The `clean_title` field of a video record is interpolated directly into a JavaScript string literal without any escaping, allowing an attacker who can create or modify a video to inject arbitrary JavaScript that executes in the browser of any user who visits the affected download page. Version 26.0 fixes the issue.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	wwbn/avideo	no fix listed	GHSA-gc3m-4mcr-h3pv

Affected products (as reported)

Vendor	Product	Versions
WWBN	AVideo	< 26.0

Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-gc3m-4mcr-h3pv x_refsource_CONFIRM
https://github.com/WWBN/AVideo/commit/30cdd825fa5778c1d678c2402be2413b84ee4833 x_refsource_MISC