CVE-2026-45622 Vvveb: Unauthenticated reflected XSS in public product return form via customer_order_id
Unauthenticated attackers can execute arbitrary JavaScript in victims' browsers via the customer_order_id parameter in the public product return form.
- 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-2026-45622?
CVE-2026-45622 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 1.0.8.3, there is an unauthenticated reflected cross-site scripting (XSS) issue in the public product return form in Vvveb CMS. The customer_order_id POST parameter is inserted into the Order %s not found! error message when the order lookup fails, and that message is rendered in the frontend template without HTML escaping. As a result, attacker-controlled HTML/JavaScript executes in the submitting user's browser. This vulnerability is fixed in 1.0.8.3.
Weakness: CWE-79
Which versions are affected by CVE-2026-45622?
How do I fix CVE-2026-45622?
No fix has been published for CVE-2026-45622 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-2026-45622 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-45622 exists.
Sources
Also known as GHSA-3xwm-8f6m-cfc6.