Vulnerability · Published Sep 3, 2026 · Assigned by VulnCheck

CVE-2026-85159AVideo Reflected XSS via cancelUri in userLogin.php

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 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.3%top 78.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

AVideo through commit c91b5975d contains a reflected cross-site scripting vulnerability in userLogin.php where the cancelUri parameter is echoed in an href attribute after isSafeRedirectURL checks protocol only, not HTML characters. Unauthenticated attackers can inject event handlers via relative URLs with embedded quotes to execute arbitrary JavaScript when users interact with the Cancel button.

Affected products (as reported)

Vendor	Product	Versions
WWBN	AVideo	0 – through c91b5975d

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

References

GitHub Security Advisory (GHSA-mw3g-2292-vw4c) vendor-advisory
VulnCheck Advisory: AVideo Reflected XSS via cancelUri in userLogin.php third-party-advisory