CVE-2026-89249: AVideo YPTWallet Stored XSS via CryptoWallet Configuration

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 YPTWallet plugin where user-supplied CryptoWallet values are base64-encoded but not HTML-escaped before storage in wallet_log.information. Administrators viewing pending withdrawal requests in pendingRequests.php execute the stored markup in their session, allowing attackers to perform administrative actions via same-origin fetch requests.

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-fvp5-q9jp-29mx
https://www.vulncheck.com/advisories/avideo-yptwallet-stored-xss-via-cryptowallet-configuration

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