CVE-2026-55230

Published: Oct 1, 2026Modified: Oct 1, 2026Deferred

8.7

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Exploitability: 2.3 / Impact: 5.8

Source: security-advisories@github.com (Secondary)

Description

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.

Related CWEs

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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.

References (3)

https://github.com/givanz/Vvveb/releases/tag/1.0.8.6

Source: security-advisories@github.com

https://github.com/givanz/Vvveb/security/advisories/GHSA-97xr-82vc-wj2v

Source: security-advisories@github.com

https://github.com/givanz/Vvveb/security/advisories/GHSA-97xr-82vc-wj2v

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.