CVE-2026-5615 givanz Vvvebjs File Upload Endpoint upload.php cross site scripting
Attackers can inject malicious scripts via the file upload endpoint, potentially leading to code execution or security bypass in Vvvebjs.
- 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-2026-5615?
CVE-2026-5615 is a medium-severity cross-site scripting vulnerability in givanz Vvvebjs, published on 6 Apr 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
A weakness has been identified in givanz Vvvebjs up to 2.0.5. The affected element is an unknown function of the file upload.php of the component File Upload Endpoint. This manipulation of the argument uploadAllowExtensions causes cross site scripting. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. Patch name: 8cac22cff99b8bc701c408aa8e887fa702755336. Applying a patch is the recommended action to fix this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Which versions are affected by CVE-2026-5615?
How do I fix CVE-2026-5615?
No fix has been published for CVE-2026-5615 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-2026-5615 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5615 exists.
Public exploit code: 1 Nuclei template and 1 proofs of concept on GitHub.
Sources
Also known as GHSA-p873-9x3v-gmvh.