givanz Vvveb up to 1.0.8.5 HTML Sanitizer HTML injection

Summaryinfo

A vulnerability described as problematic has been identified in givanz Vvveb up to 1.0.8.5. Affected is an unknown function of the component HTML Sanitizer. Executing a manipulation can lead to HTML injection. The identification of this vulnerability is CVE-2026-55230. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in givanz Vvveb up to 1.0.8.5. It has been declared as problematic. This vulnerability affects an unknown code block of the component HTML Sanitizer. The manipulation with an unknown input leads to a html injection 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:

Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to version 1.0.8.6, Vvveb's HTML sanitizer fails to strip event-handler attributes when a tag carries a greater-than character inside a quoted attribute value. A low-privilege content author (default role author or contributor) can store a payload in post or product content that runs JavaScript in a browser of every visitor and of any administrator who views or previews that content, which opens a path to admin account takeover. This issue has been patched in version 1.0.8.6.

The advisory is available at github.com. This vulnerability was named CVE-2026-55230 since 06/16/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 1.0.8.6 eliminates this vulnerability.

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Productinfo

Vendor

• givanz

Name

• Vvveb

Version

• 1.0.8.0
• 1.0.8.1
• 1.0.8.2
• 1.0.8.3
• 1.0.8.4
• 1.0.8.5

Website

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

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