CVE-2026-119661

Description

ShowDoc through 3.9.5 contains an authorization bypass vulnerability in the api/paramDescLib/deleteEntries endpoint that checks edit permission only for the first supplied entry id. Authenticated attackers can place their own entry id first and append other users' entry ids to permanently delete those parameter-description entries.

References

• https://github.com/star7th/showdoc
• https://github.com/star7th/showdoc/blob/v3.9.5/server/app/Api/Controller/ParamDescLibController.php#L545-L584
• https://github.com/star7th/showdoc/commit/53228511e656904abf7841c3d25ff78a4b5ce9c2
• https://github.com/star7th/showdoc/issues/2612
• https://hackmd.io/@hieuPenguinnn/showdoc-paramdesclib-cross-item-idor-delete