{"id":"CVE-2026-119644","published":"2026-10-30T15:16:47.557","lastModified":"2026-10-30T19:23:25.493","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.","cvssScore":5.4,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","cwes":["CWE-639"],"vendors":[],"products":[],"references":[{"url":"https://github.com/blossom-editor/blossom","tags":[]},{"url":"https://github.com/blossom-editor/blossom/blob/v1.17.1/blossom-backend/backend/src/main/java/com/blossom/backend/server/picture/PictureController.java#L56-L109","tags":[]},{"url":"https://github.com/blossom-editor/blossom/blob/v1.17.1/blossom-backend/backend/src/main/java/com/blossom/backend/server/picture/PictureService.java#L222-L232","tags":[]},{"url":"https://github.com/blossom-editor/blossom/issues/214","tags":[]},{"url":"https://hackmd.io/@hieuPenguinnn/blossom-picture-idor-cross-user-delete","tags":[]},{"url":"https://www.vulncheck.com/advisories/blossom-through-1.17.1-authorization-bypass-via-picture-delete-and-star-endpoints","tags":[]}],"exploitRefs":[{"url":"https://github.com/blossom-editor/blossom","tags":[]},{"url":"https://github.com/blossom-editor/blossom/blob/v1.17.1/blossom-backend/backend/src/main/java/com/blossom/backend/server/picture/PictureController.java#L56-L109","tags":[]},{"url":"https://github.com/blossom-editor/blossom/blob/v1.17.1/blossom-backend/backend/src/main/java/com/blossom/backend/server/picture/PictureService.java#L222-L232","tags":[]},{"url":"https://github.com/blossom-editor/blossom/issues/214","tags":[]}],"hasPoc":true,"ai":null}