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.
Does this matter?
Lower severity and a low EPSS score (0.30%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 4.0
- 5.3 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.30% probability · 22th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Source
- disclosure@vulncheck.com
EPSS moved from 0.2% on 16 October 2026 to 0.3% on 26 October 2026.
References
- 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
- https://hackmd.io/@hieuPenguinnn/peppermint-data-logs-missing-authorization
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.