CVE-2026-45616 Vvveb: Stored XSS in Posts allows privilege escalation via post editor
Stored XSS in the Vvveb CMS post editor allows attackers to escalate privileges and potentially execute code.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-45616?
CVE-2026-45616 is a medium-severity cross-site scripting vulnerability in givanz Vvveb, published on 15 May 2026. Any signed-in user can exploit it over the network, 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, This vulnerability is fixed in 1.0.8.3.
Weakness: CWE-79
Which versions are affected by CVE-2026-45616?
How do I fix CVE-2026-45616?
No fix has been published for CVE-2026-45616 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-2026-45616 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-45616 exists.
Sources
Also known as GHSA-39gc-pjv5-4w4p.