Vulnerability in blossom-editor Blossom

[ Description ]Official description

Blossom through 1.17.1 contains an authorization bypass vulnerability that allows authenticated non-readonly users to modify other users' pictures by supplying arbitrary picture ids. Attackers can call the picture delete, /picture/del/batch, or /picture/star endpoints to permanently delete victims' images and stored files or change their star status.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/blossom-editor/blossom
• github.com/blossom-editor/blossom/blob/v1.17.1/blossom-backend/backend/src/main/java/co…
• github.com/blossom-editor/blossom/blob/v1.17.1/blossom-backend/backend/src/main/java/co…
• github.com/blossom-editor/blossom/issues/214
• hackmd.io/@hieuPenguinnn/blossom-picture-idor-cross-user-delete
• www.vulncheck.com/advisories/blossom-through-1.17.1-authorization-bypass-via-picture-de…