CVE-2026-55230

8.7 HIGHpublic exploit available

Published 2026-10-01 · Updated 2026-10-01

AI risk analysis

Summary: The flaw allows a low-privilege content author to inject JavaScript via event-handler attributes, potentially leading to admin account takeover.
Exploitability: Exploitation is moderately easy given the preconditions of a low-privilege author role and the ability to control content.
Blast radius: If exploited, this could result in unauthorized access to admin accounts and potential full system compromise.
Detection: No reliable host or network indicator is derivable from the published description.
Prioritized remediation: Upgrade to Vvveb 1.0.8.6 or later.

rcewebauth-bypassjavascriptcms

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD 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.

CVSS vector

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

Weaknesses

CWE-79

Public exploit & PoC references

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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