CVE-2026-115932: critical vulnerability in GitroomHQ postiz-app
Path traversal in post media lets any registered user read server files
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.6epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Affected products
GitroomHQ · postiz-appRelated CVEs — GitroomHQ postiz-app
In the same product, most dangerous first.
CVE-2026-94456CRITICALUnauthenticated recovery of the Math.random() state behind OAuth tokens, authorization codes, client secrets and organization API keysEPSS 0.5%CVE-2026-115931CRITICALArbitrary file read and backend crash through unrestricted provider method callsEPSS 0.5%CVE-2026-19127MEDIUMInsufficient verification of lifetime-deal redemption codes allows forgery of permanent paid subscriptionsEPSS 0.3%CVE-2026-107761MEDIUMChannel tokens and organization API key exposed in API responsesEPSS 0.3%CVE-2026-94455HIGHUnauthenticated /enterprise/create-user mints lifetime top-tier organizations and discloses their API keyEPSS 0.3%CVE-2026-115933CRITICALForged signed tokens let any registered user take over other users and organizationsEPSS 0.2%