givanz Vvveb up to 1.0.8.2 Signup::addUser display_name cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, was found in givanz Vvveb. Affected is the function Signup::addUser. Such manipulation of the argument display_name leads to cross site scripting. This vulnerability is referenced as CVE-2026-41932. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in givanz Vvveb. Affected by this issue is the function Signup::addUser. The manipulation of the argument display_name with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. CVE summarizes:

Vvveb before 1.0.8.3 contains a stored cross-site scripting vulnerability in the customer signup flow where the Signup::addUser() controller copies raw POST username values into the display_name field before sanitization occurs. Attackers can submit HTML and script markup in the username field during signup, which gets stripped from the username column but persisted verbatim in the display_name column, allowing stored XSS execution when display_name is rendered without encoding in vulnerable views.

The weakness was published by Basant Kumar. The advisory is available at github.com. This vulnerability is handled as CVE-2026-41932 since 04/22/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. 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.

Upgrading to version 1.0.8.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch fefac290a8c85d3c87fe80ffed68b6c5bc50e93c 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.

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

Productinfo

Vendor

• givanz

Name

• Vvveb

Version

• 1.0.5
• 1.0.6
• 1.0.6.1
• 1.0.7
• 1.0.7.2
• 1.0.8
• 1.0.8.1
• 1.0.8.2

License

• open-source

Website

• Product: https://github.com/givanz/Vvveb/

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

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