GHSA-62f6-6f4g-pr5mMediumCVSS 5.3
Blinko through 1.8.8 contains a broken access control vulnerability in the /api/file route that...
🔗 CVE IDs covered (1)
📋 Description
Blinko through 1.8.8 contains a broken access control vulnerability in the /api/file route that allows authenticated users to read other users' private attachments due to a flawed owner check. Attackers can supply another user's stored filename, following a basename plus millisecond-timestamp pattern, to download private, non-shared attachments.
🔗 References (6)
- https://nvd.nist.gov/vuln/detail/CVE-2026-110774
- https://github.com/blinkospace/blinko
- https://github.com/blinkospace/blinko/blob/178e4b3538a21823a50ac2481e653d56cb1ffa86/server/routerExpress/file/file.ts#L148
- https://hackmd.io/@hieuPenguinnn/blinko-attachment-accountid-idor
- https://www.vulncheck.com/advisories/blinko-through-1.8.8-private-attachment-read-via-api-file-route
- https://github.com/advisories/GHSA-62f6-6f4g-pr5m