What’s Vulnerable › Vulnerabilities

CVE-2026-89257: AVideo through 29.0 Cross-User Category Asset Deletion via Missing Ownership Check

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-11 · updated 2026-09-15
• Weakness: CWE-639

Description

AVideo through 29.0 contains an insecure direct object reference (IDOR) vulnerability in objects/categoryDeleteAssets.json.php. The endpoint validates only the Category::canCreateCategory() capability and a CSRF nonce before passing the attacker-supplied $_REQUEST['id'] to Category::deleteAssets(), which recursively removes {systemRootPath}videos/categories/assets/{id}/. It omits the Category::userCanEditCategory() ownership check enforced by the sibling Category::delete(). On installations where the non-default usersCanCreateNewCategories setting is enabled, an authenticated non-admin user with the canUpload capability can send a POST request with an arbitrary category ID and recursively delete any category's on-disk asset directory (icons/images). Category records and videos are not deleted. As of the advisory publication no patched version was available.

Affected products

• WWBN AVideo: through 29.0

References

• https://github.com/WWBN/AVideo/security/advisories/GHSA-gf2v-r8wx-ghqj
• https://www.vulncheck.com/advisories/avideo-through-29.0-cross-user-category-asset-deletion-via-missing-ownership-check
• https://github.com/WWBN/AVideo/security/advisories/GHSA-gf2v-r8wx-ghqj

Get alerted when CVE-2026-89257 or the next vulnerability affects your stack