---
id: CVE-2026-55230
title: >-
  Vvveb is a powerful and easy to use CMS with page builder to build websites,
  blogs or ecommerce stores
summary: >-
  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 …
severity: high
cvss: 8.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N'
cwe:
  - CWE-79
vendor: givanz
product: Vvveb
affected:
  - Vvveb < 1.0.8.6
published: '2026-10-01'
updated: '2026-10-01'
sourceUpdated: '2026-10-01T20:17:25.737'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-55230'
references:
  - url: 'https://github.com/givanz/Vvveb/releases/tag/1.0.8.6'
    label: security-advisories@github.com
  - url: 'https://github.com/givanz/Vvveb/security/advisories/GHSA-97xr-82vc-wj2v'
    label: security-advisories@github.com
  - url: 'https://github.com/givanz/Vvveb/security/advisories/GHSA-97xr-82vc-wj2v'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-01T19:22:58.340870Z'
ingestedAt: '2026-10-01T19:58:57.554Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.