{"id":"CVE-2026-115932","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-115932","generatedAt":"2026-10-28T03:41:48.927Z","title":"A registered user can store a crafted media path with a post, get it past the checks that normally restrict it, and have the publishing worker read an arbitrary file and send it as an attachment to a Discord server the user controls.","description":"When a post is published, Postiz treats a media path that is not a web address as a file on the server's disk, but it does not check that the file lies inside the upload directory. A registered user can store a crafted media path with a post, get it past the checks that normally restrict it, and have the publishing worker read an arbitrary file and send it as an attachment to a Discord server the user controls.\n\nThe same unconfined reads can be reached through two further routes. One tells the caller whether a file exists and can exhaust the backend's memory, the other delivers the file the same way as the main route. Self-registration is open by default, so the attacker needs no existing account.","published":"2026-10-24T13:16:37.000Z","lastModified":"2026-10-26T16:54:35.000Z","status":"Deferred","sourceIdentifier":"4cdc9741-f887-419a-a2fd-acbbd2729276","cvss":{"version":"3.1","score":9.6,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N"},"cwe":["CWE-22","CWE-74"],"affected":[],"epss":{"score":0.00428,"percentile":0.36842,"date":"2026-10-27","history":[{"date":"2026-10-25","score":0.00428,"percentile":0.36744}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-24T13:16:37.000Z","detail":{"score":"9.6","severity":"CRITICAL","publishedAt":"2026-10-24T13:16:37.217Z"},"summary":"New CVE, critical severity (CVSS 9.6)."}],"references":[{"url":"https://gadvisory.org/advisories/PSA-2026-E9AHFV","source":"4cdc9741-f887-419a-a2fd-acbbd2729276"},{"url":"https://github.com/gitroomhq/postiz-app","source":"4cdc9741-f887-419a-a2fd-acbbd2729276"},{"url":"https://github.com/gitroomhq/postiz-app/commit/12db9bd2f428b628a62809669c3d76297e07750a","source":"4cdc9741-f887-419a-a2fd-acbbd2729276"},{"url":"https://github.com/gitroomhq/postiz-app/releases/tag/v2.25.3","source":"4cdc9741-f887-419a-a2fd-acbbd2729276"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-115932","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}