OpenCATS up to 0.11.x MRU Navigation Panel lib/MRU.php getFormatted cross site scripting

Summaryinfo

A vulnerability was found in OpenCATS up to 0.11.x and classified as problematic. Affected by this issue is the function getFormatted of the file lib/MRU.php of the component MRU Navigation Panel. Executing a manipulation can lead to cross site scripting. This vulnerability appears as CVE-2026-115513. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenCATS up to 0.11.x. It has been declared as problematic. This vulnerability affects the function getFormatted of the file lib/MRU.php of the component MRU Navigation Panel. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

OpenCATS before 0.12.0 contains a stored cross-site scripting vulnerability that allows a low-privileged authenticated user to inject HTML/JavaScript payloads by setting a Candidate, Company, Contact, Job Order, or List name/title field, which is stored unsanitized and later rendered unescaped in the 'Recent' (MRU) navigation panel displayed on nearly every page via lib/MRU.php's getFormatted() function. Attackers can exploit this by crafting a malicious record name that executes arbitrary JavaScript in the session of any other user, including Site Administrators, who views the record, enabling session/cookie theft and privilege escalation to full administrative control.

The advisory is available at github.com. This vulnerability was named CVE-2026-115513 since 10/22/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

By approaching the search of inurl:lib/MRU.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 0.12.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-108259). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• OpenCATS

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11

Website

• Product: https://github.com/opencats/OpenCATS/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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