opensource-socialnetwork up to 9.11/10.1 Cache Settings dynamic.php input host/port/username/password/type/status code injection

Summaryinfo

A vulnerability, which was classified as problematic, was found in opensource-socialnetwork up to 9.11/10.1. This impacts the function input of the file actions/administrator/cache/dynamic.php of the component Cache Settings. Executing a manipulation of the argument host/port/username/password/type/status can lead to code injection. This vulnerability is tracked as CVE-2026-113388. The attack can be launched remotely. Moreover, an exploit is present. It is best practice to apply a patch to resolve this issue. The vendor explains: "While we have implemented this patch as a defense-in-depth measure, we emphasize that in Open Source Social Network (OSSN), site administrators are fully trusted users who are intentionally granted broad system authority by design including the native ability to upload custom components/themes containing arbitrary PHP code."

Detailsinfo

A vulnerability has been found in opensource-socialnetwork up to 9.11/10.1 and classified as problematic. This vulnerability affects the function input of the file actions/administrator/cache/dynamic.php of the component Cache Settings. The manipulation of the argument host/port/username/password/type/status with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is available at gist.github.com. This vulnerability was named CVE-2026-113388. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are required for exploitation. Successful exploitation requires user interaction by the victim. Technical details and also a public exploit are known. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

It is possible to download the exploit at gist.github.com. It is declared as proof-of-concept. The vendor explains: "While we have implemented this patch as a defense-in-depth measure, we emphasize that in Open Source Social Network (OSSN), site administrators are fully trusted users who are intentionally granted broad system authority by design including the native ability to upload custom components/themes containing arbitrary PHP code." By approaching the search of inurl:actions/administrator/cache/dynamic.php it is possible to find vulnerable targets with Google Hacking.

Applying the patch 40945057cb451f0f35153110bc7e889c094400e1 is able to eliminate this problem. The bugfix is ready for download at github.com.

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Productinfo

Name

• opensource-socialnetwork

Version

• 9.0
• 9.1
• 9.2
• 9.3
• 9.4
• 9.5
• 9.6
• 9.7
• 9.8
• 9.9
• 9.10
• 9.11
• 10.0
• 10.1

License

• open-source

Website

• Product: https://github.com/opensource-socialnetwork/opensource-socialnetwork/

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Accepted

• Submit #1009749: opensource-socialnetwork Open Source Social Network (OSSN) v9.1.0.0 (master branch, commit 9983ea4) CWE-94 Remote Code Execution (RCE) (by qianqiu)

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