WWBN AVideo CustomizeUser add.json.php typeToHTML field_name cross site scripting

Summaryinfo

A vulnerability classified as problematic has been found in WWBN AVideo. This affects the function typeToHTML of the file add.json.php of the component CustomizeUser. This manipulation of the argument field_name causes cross site scripting. This vulnerability is registered as CVE-2026-89254. Remote exploitation of the attack is possible. No exploit is available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in WWBN AVideo (version now known). It has been declared as problematic. Affected by this vulnerability is the function typeToHTML of the file add.json.php of the component CustomizeUser. The manipulation of the argument field_name 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. The summary by CVE is:

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the CustomizeUser plugin where the field_name parameter is stored raw without sanitization. Administrators can inject malicious scripts via the add.json.php endpoint that execute when viewing extra info pages or profile forms that render the typeToHTML function.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-89254 since 09/11/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation requires an enhanced level of successful authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

By approaching the search of inurl:add.json.php it is possible to find vulnerable targets with Google Hacking.

Applying the patch c3edcc274c389816d434acadac07ee78eaf330c1 is able to eliminate this problem.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• WWBN

Name

• AVideo

License

• open-source

Website

• Product: https://github.com/WWBN/AVideo/

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion