CVE-2026-67204

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...

CVE-2026-67204 BookStack < 26.05.4 Broken Access Control via Image Gallery API

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...

EUVD-2026-64919

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...

PT-2026-80904

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...

CVE-2025-10755

CVE-2025-10755 affects Selleo Mentingo 2025.08.27, with the vulnerable component in the Content-Type Handler. The issue arises from manipulation of the argument userAvatar , leading to unrestricted file uploads. The attack is described as remote and publicly exploitable; multiple sources cite a p...

CVE-2025-48480

CVE-2025-48480 affects FreeScout prior to version 1.8.180. An authorized user with the administrator role or with the privilege User::PERM_EDIT_USERS can create a user and specify the avatar path as ../.htaccess, then delete the avatar, causing deletion of the .htaccess file in the folder /storag...