Vulnerability · Published May 6, 2026 · Assigned by VulnCheck

CVE-2026-41938Vvveb < 1.0.8.2 RCE via Media Upload Handler

High 8.8

In plain English

A high-severity unrestricted file upload in Vvveb from givanz. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.7%top 46.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Vvveb before version 1.0.8.2 contains an unrestricted file upload vulnerability in the media upload handler that allows authenticated users with media-upload permissions to bypass extension restrictions by uploading a .htaccess file to map .phtml extensions to the PHP handler. Attackers can upload a .phtml file containing arbitrary PHP code and execute the uploaded payload through a subsequent unauthenticated HTTP GET request to the uploaded file, resulting in remote code execution with web server privileges.

Affected products (as reported)

Vendor	Product	Versions
givanz	Vvveb	0 – before 1.0.8.2

Weakness: CWE-434 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/givanz/Vvveb/releases/tag/1.0.8.2 release-notes
https://github.com/givanz/Vvveb/security/advisories/GHSA-wwmv-4g9g-p48g vendor-advisory
https://github.com/givanz/Vvveb/commit/54a9e846fb94192f1b31ae81d81d25c874662e6a patch
https://www.vulncheck.com/advisories/vvveb-rce-via-media-upload-handler third-party-advisory