Vulnerability · Published Sep 11, 2026 · Assigned by VulnCheck

CVE-2026-89255AVideo LoginControl Stored XSS via PGP Public Key

High 8.7

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 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 3.1)8.7High

Exploit odds (30 days)0.4%top 69.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the LoginControl plugin that fails to HTML-encode PGP public keys echoed into a textarea element. An authenticated attacker can inject malicious JavaScript by submitting a crafted public key, which executes in an administrator's session when viewing the user's profile tab.

Affected products (as reported)

Vendor	Product	Versions
WWBN	AVideo	0 – through c3edcc274c389816d434acadac07ee78eaf330c1

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

References

GitHub Security Advisory (GHSA-gq4h-vw2w-9rx3) vendor-advisory
VulnCheck Advisory: AVideo LoginControl Stored XSS via PGP Public Key third-party-advisory