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Vulnerability record · CVE-2026-89252 · published 11 September 2026

CVE-2026-89252: Insecure direct object reference vulnerability

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.

7.1 CVSS 4.0 High EPSS 0.31% · top 78.5% CWE-639 · Insecure direct object reference Deferred
7.1CVSS 4.0 base score
0.31%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
15 Sep 2026Last modified by NVD

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:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.4CVE-2026-55255Langflow IDOR in responses endpoint allows cross-user flow executionLangflow before 1.9.1 has an insecure direct object reference in the /api/v1/responses endpoint. An authenticated attacker can supply another user's …KEVEPSS 0.89%analysed

Source: NIST National Vulnerability Database (record CVE-2026-89252), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.