{"id":"CVE-2026-110774","published":"2026-10-14T19:17:13.650","lastModified":"2026-10-15T15:17:28.940","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.","cvssScore":5.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","cwes":["CWE-639"],"vendors":[],"products":[],"references":[{"url":"https://github.com/blinkospace/blinko","tags":[]},{"url":"https://github.com/blinkospace/blinko/blob/178e4b3538a21823a50ac2481e653d56cb1ffa86/server/routerExpress/file/file.ts#L148","tags":[]},{"url":"https://hackmd.io/@hieuPenguinnn/blinko-attachment-accountid-idor","tags":[]},{"url":"https://www.vulncheck.com/advisories/blinko-through-1.8.8-private-attachment-read-via-api-file-route","tags":[]}],"exploitRefs":[{"url":"https://github.com/blinkospace/blinko","tags":[]},{"url":"https://github.com/blinkospace/blinko/blob/178e4b3538a21823a50ac2481e653d56cb1ffa86/server/routerExpress/file/file.ts#L148","tags":[]}],"hasPoc":true,"ai":null}