Threats Tagged 'cve-2026-67204'
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Threats Tagged 'cve-2026-67204'
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CVE-2026-67204: Incorrect Authorization in BookStackApp BookStackCVE-2026-67204 0 BookStack before 26.05.4 contains a broken access control vulnerability that allows authenticated API users with image-update or image-delete permissions to manipulate other users' avatars by exploiting missing content-type restrictions in the Image Gallery API endpoints. Attackers can supply a user avatar's ID to the API controller, which loads any image type without the web controller's gallery and drawio restrictions, and when the avatar's uploaded_to field matches a page ID accessible to the attacker, the authorization check passes allowing the attacker to rename, replace, or delete the target user's avatar without requiring user-management permission. Join the discussion | CVE Database V5 | 08/24/2026, 15:33:13 UTC Added: 08/24/2026, 15:52:54 UTC |
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