Vulnerability in Givanz Vvveb
CVE-2026-41934
Vvveb before version 1.0.8.2 contains an authenticated remote code execution vulnerability in the admin code editor that allows low-privilege authenticated users to execute arbitrary code through insufficient file extension restrictions, with the uploaded payload then executable via subsequent unauthenticated HTTP requests. Attackers with editor, author, contributor, or site_admin roles can write a malicious .htaccess file to map arbitrary extensions to the PHP handler, then upload PHP code with that extension to achieve unauthenticated remote code execution when the file is accessed via HTTP.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (60.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.010 · change: +0.004
Affected products
- Givanz Vvveb — versions 0
Weakness classification (CWE)
References
- github.com/givanz/Vvveb/releases/tag/1.0.8.2 (release-notes)
- github.com/givanz/Vvveb/security/advisories/GHSA-vfjj-gcvv-w248 (vendor-advisory)
- github.com/givanz/Vvveb/commit/1196561276a3f49da5a714fef89ac9a6c6f9e33b (patch)
- www.vulncheck.com/advisories/vvveb-authenticated-rce-via-code-editor (third-party-advisory)
Frequently asked questions
- What is CVE-2026-41934?
- CVE-2026-41934 is a high-severity vulnerability in Givanz Vvveb, classified under Incomplete List of Disallowed Inputs. CVSS score: 8.8/10. Published 2026-05-06.
- How severe is CVE-2026-41934?
- High severity. CVSS v3 base score is 8.8 out of 10.