gitroomhq postiz-app up to 1.62.2 Outbound Request server-side request forgery

Summaryinfo

A vulnerability, which was classified as critical, has been found in gitroomhq postiz-app up to 1.62.2. This issue affects some unknown processing of the component Outbound Request Handler. This manipulation causes server-side request forgery. This vulnerability is tracked as CVE-2025-53641. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in gitroomhq postiz-app up to 1.62.2. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component Outbound Request Handler. The manipulation with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-53641 since 07/07/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

Upgrading to version 1.62.3 eliminates this vulnerability. Applying the patch 65eca0e2f22155b43c78724ca43617ee52e42753 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-21168). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• gitroomhq

Name

• postiz-app

Version

• 1.62.0
• 1.62.1
• 1.62.2

License

• open-source

Website

• Product: https://github.com/gitroomhq/postiz-app/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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