Postiz < 2.21.3 - Unauthenticated Server-Side Request Forgery

Postiz before 2.21.3 exposes an unauthenticated GET /public/stream endpoint that fetches a user-supplied URL and returns its response; a weak mp4 suffix check allows requests to internal HTTP services. id: CVE-2026-34577 info: name: Postiz 2.21.3 - Unauthenticated Server-Side Request Forgery...

gha-lab-677752506e

Automated research artifact — not the upstream project. This repository is a disposable lab built by an automated harness for a master's thesis at Université Laval on reproducing published GitHub Actions workflow vulnerabilities. It is a verbatim snapshot of gitroomhq/postiz-app at commit...

CVE-2026-19264

CVE-2026-19264 - Unauthenticated Path Traversal to Full Instance Takeover in Postiz Author: Krithik Babu P @DarkLycn1976 Published: 2026-08-10 CVE: CVE-2026-19264 Severity: Critical - CVSS 4.0 9.3 / CVSS 3.1 9.8 CWE: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory Affected:...

CVE-2026-40487

CVE-2026-40487 - Postiz = 2.21.5 - Arbitrary File Upload via MIME-Type Spoofing to Stored XSS to Account Takeover Discovered & reported by: Astaruf Full writeup: https://nstsec.com/en/posts/postiz-xss-cve-2026-40487/ NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2026-40487 GHSA entry:...

CVE-2026-115933

Postiz signs its session, invitation and password reset tokens with one shared secret and without any marker of what a token is for. A route that refreshes the credentials of a browser-extension channel signed data taken from the request itself and stored the result where the requesting user can...

EUVD-2026-109300

Postiz signs its session, invitation and password reset tokens with one shared secret and without any marker of what a token is for. A route that refreshes the credentials of a browser-extension channel signed data taken from the request itself and stored the result where the requesting user can...

CVE-2026-115933 Forged signed tokens let any registered user take over other users and organizations

Postiz signs its session, invitation and password reset tokens with one shared secret and without any marker of what a token is for. A route that refreshes the credentials of a browser-extension channel signed data taken from the request itself and stored the result where the requesting user can...

CVE-2026-115933 Forged signed tokens let any registered user take over other users and organizations

Postiz signs its session, invitation and password reset tokens with one shared secret and without any marker of what a token is for. A route that refreshes the credentials of a browser-extension channel signed data taken from the request itself and stored the result where the requesting user can...

CVE-2026-115933

The Postiz application is vulnerable to a critical flaw where it signs session, invitation, and password reset tokens using a single shared secret without specifying the token's purpose. A specific route refreshing browser-extension channel credentials allows users to submit signed data from a re...

CVE-2026-115933 Forged signed tokens let any registered user take over other users and organizations

Postiz signs its session, invitation and password reset tokens with one shared secret and without any marker of what a token is for. A route that refreshes the credentials of a browser-extension channel signed data taken from the request itself and stored the result where the requesting user can...

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 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...

CVE-2026-115932 Path traversal in post media lets any registered user read server files

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...

CVE-2026-115932

The Postiz application is vulnerable to a path traversal vulnerability when a user publishes a post. The system fails to verify that media paths not pointing to web addresses remain within the designated upload directory. A registered user (or a self-registered account) can provide a crafted path...

CVE-2026-115932 Path traversal in post media lets any registered user read server files

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...

EUVD-2026-109293

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...

CVE-2026-115932 Path traversal in post media lets any registered user read server files

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...

EUVD-2026-109207

Postiz lets a signed-in user ask the backend to run a function on one of their connected channels. The backend did not restrict which functions can be requested, so a user could call internal helper functions that were never meant to be reachable from the web interface. One of those helpers reads...

PT-2026-122609

Name of the Vulnerable Software and Affected Versions Postiz affected versions not specified Description Postiz uses a single shared secret to sign session, invitation, and password reset tokens without including a marker to distinguish the token purpose. A route used to refresh browser-extension...

Gitroom Postiz authorization issue vulnerability

A security vulnerability exists in Gitroom Postiz versions from 2.15.0 up to and including 2.25.3. This vulnerability arises from the use of the same shared key for issuing sessions, invitations, and password reset tokens without distinguishing between their purposes. Certain routes responsible f...

PT-2026-122603

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...