CVE-2026-115932
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 th
CVSS
9.6
Critical
EPSS
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KEV
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Exploit Today
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0-100
Published: Oct 24, 2026 · Last modified: Oct 24, 2026 · CWE-22 · CWE-74
Not enough EPSS history yet.
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. The 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.