CVE-2025-53641 HIGH

CVE-2025-53641: Postiz allows header mutation in middleware facilitates resulting in SSRF

Vendor Gitroomhq
Product postiz-app
Weakness CWE-918 · SSRF
Published July 11, 2025
Last update July 11, 2025

CVSS base score

8.2/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

What the vulnerability does

01Description

Postiz is an AI social media scheduling tool. From 1.45.1 to 1.62.3, the Postiz frontend application allows an attacker to inject arbitrary HTTP headers into the middleware pipeline. This flaw enables a server-side request forgery (SSRF) condition, which can be exploited to initiate unauthorized outbound requests from the server hosting the Postiz application. This vulnerability is fixed in 1.62.3.

Key dates

02Disclosure timeline

July 11, 2025 CVE published
July 11, 2025 Record updated

Related vulnerabilities

04Related CVE