Kovah LinkAce up to 2.3.0 /system/audit Username cross site scripting

Summaryinfo

A vulnerability categorized as problematic has been discovered in Kovah LinkAce up to 2.3.0. This vulnerability affects unknown code of the file /system/audit. Executing a manipulation of the argument Username can lead to cross site scripting. This vulnerability is handled as CVE-2025-59424. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Kovah LinkAce up to 2.3.0 and classified as problematic. This vulnerability affects an unknown functionality of the file /system/audit. The manipulation of the argument username 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:

LinkAce is a self-hosted archive to collect website links. Prior to 2.3.1, a Stored Cross-Site Scripting (XSS) vulnerability has been identified on the /system/audit page. The application fails to properly sanitize the username field before it is rendered in the audit log. An authenticated attacker can set a malicious JavaScript payload as their username. When an action performed by this user is recorded (e.g., generate or revoke an API token), the payload is stored in the database. The script is then executed in the browser of any user, particularly administrators, who views the /system/audit page. This vulnerability is fixed in 2.3.1.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-59424 since 09/15/2025. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 2.3.1 eliminates this vulnerability. Applying the patch c0d21b974b32f1ca2fab550fb476c573a068e196 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.

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Productinfo

Vendor

• Kovah

Name

• LinkAce

Version

• 2.0
• 2.1
• 2.2
• 2.3.0

License

• open-source

Website

• Product: https://github.com/Kovah/LinkAce/

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