CVE-2026-44366 Vvveb: Stored XSS via Comment Author Field
An attacker can inject malicious scripts via the comment author field in Vvveb CMS, potentially executing code or hijacking user sessions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-44366?
CVE-2026-44366 is a medium-severity cross-site scripting vulnerability in givanz Vvveb, published on 15 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to 1.0.8.1, a Stored Cross-Site Scripting (XSS) vulnerability exists in the Vvveb CMS comment submission flow. The author field is submitted by an unauthenticated user on any public post page, stored without sanitization, and later rendered unsanitized in two distinct sinks: This vulnerability is fixed in 1.0.8.1.
Weakness: CWE-79
Which versions are affected by CVE-2026-44366?
How do I fix CVE-2026-44366?
No fix has been published for CVE-2026-44366 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-44366 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44366 exists.
Sources
Also known as GHSA-gpmg-pcxr-9wvf.