CVE-2026-111353

Peppermint through 0.5.5 contains a missing authorization vulnerability that allows any authenticated user to create time entries and attachments as other users by supplying a user id in the request body. Attackers can send POST requests to /api/v1/time/new or /api/v1/storage/ticket/:id/upload/single to attach files and time records to any ticket under another user's identity.

• https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/controllers/storage.ts#L9-L35
• https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/controllers/time.ts#L6-L27
• https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/main.ts#L57-L70

• https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/controllers/storage.ts#L9-L35
• https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/controllers/time.ts#L6-L27
• https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/main.ts#L57-L70
• https://hackmd.io/@hieuPenguinnn/peppermint-data-logs-missing-authorization
• https://www.vulncheck.com/advisories/peppermint-through-0.5.5-missing-authorization-via-time-tracking-and-attachment-upload-endpoints

• MEDIUMCVE-2025-14484
• MEDIUMCVE-2025-14486
• MEDIUMCVE-2025-14487
• HIGHCVE-2025-71433PoC
• MEDIUMCVE-2026-0198
• HIGHCVE-2026-100217
• CRITICALCVE-2026-100240
• HIGHCVE-2026-100266

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