Vulnerability details

CVE-2026-89249

WWBN AVideo

AVideo YPTWallet Stored XSS via CryptoWallet Configuration

CVSS 4.0

9.3Critical

Official 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.

CVSS scores

Score	Version	Source	Vector
9.3Critical	4.0	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N`
8.7High	3.1	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N`

Affected products

Vendor	Product	Versions	Source
WWBN	AVideo	v ≤ c3edcc274c389816d434acadac07ee78eaf330c1	CVEProject cvelistV5 (CNA)

References and advisories

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

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Details

Published: 2026-09-11
Last updated: 2026-09-11
State: Published
Assigner (CNA): VulnCheck

Exploit prediction (EPSS)

0.36%

Probability of exploitation in 30 days

30.6%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Partial

Weaknesses (CWE)

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')