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

• Severity: high (CVSS 8.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-11 · updated 2026-09-11
• Weakness: CWE-79

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.

References

• https://github.com/WWBN/AVideo/security/advisories/GHSA-gq4h-vw2w-9rx3
• https://www.vulncheck.com/advisories/avideo-logincontrol-stored-xss-via-pgp-public-key
• https://github.com/WWBN/AVideo/security/advisories/GHSA-gq4h-vw2w-9rx3

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