What’s Vulnerable › Vulnerabilities

CVE-2026-33650: AVideo's Video Moderator Privilege Escalation via Ownership Transfer Enables Arbitrary Video Deletion

• Severity: high (CVSS 7.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-23 · updated 2026-06-17
• Weakness: CWE-863

Description

WWBN AVideo is an open source video platform. In versions up to and including 26.0, a user with the "Videos Moderator" permission can escalate privileges to perform full video management operations — including ownership transfer and deletion of any video — despite the permission being documented as only allowing video publicity changes (Active, Inactive, Unlisted). The root cause is that `Permissions::canModerateVideos()` is used as an authorization gate for full video editing in `videoAddNew.json.php`, while `videoDelete.json.php` only checks ownership, creating an asymmetric authorization boundary exploitable via a two-step ownership-transfer-then-delete chain. Commit 838e16818c793779406ecbf34ebaeba9830e33f8 contains a patch.

Affected products

• WWBN AVideo: through 26.0

References

• https://github.com/WWBN/AVideo/commit/838e16818c793779406ecbf34ebaeba9830e33f8
• https://github.com/WWBN/AVideo/security/advisories/GHSA-8x77-f38v-4m5j
• https://github.com/WWBN/AVideo/security/advisories/GHSA-8x77-f38v-4m5j

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