Vulnerability details

CVE-2026-89252

WWBN AVideo

AVideo Missing Authorization in addLiveLink.php LiveLink Update

CVSS 4.0

7.1High

Official description

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to verify ownership in addLiveLink.php when updating LiveLinks, allowing authenticated users to modify other users' links. A canStream user can overwrite another user's LiveLink HLS source and metadata by supplying an existing linkId, redirecting viewers to attacker-controlled media.

CVSS scores

Score	Version	Source	Vector
7.1High	4.0	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N`
6.5Medium	3.1	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N`

Affected products

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

References and advisories

https://www.vulncheck.com/advisories/avideo-missing-authorization-in-addlivelink-php-livelink-update third-party-advisory
https://github.com/WWBN/AVideo/security/advisories/GHSA-m2c6-f5ww-j26v vendor-advisory

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Details

Published: 2026-09-11
Last updated: 2026-09-15
State: Published
Assigner (CNA): VulnCheck

Exploit prediction (EPSS)

0.31%

Probability of exploitation in 30 days

24%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: Proof of concept
Technical impact: Partial

Weaknesses (CWE)

CWE-639
Authorization Bypass Through User-Controlled Key