What is CVE-2026-34429?

CVE-2026-34429 is a medium-severity vulnerability in Givanz Vvveb, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-04-20.

How severe is CVE-2026-34429?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Givanz Vvveb

CVE-2026-34429

Vvveb prior to 1.0.8.1 contains a stored cross-site scripting vulnerability that allows authenticated users with media upload and rename permissions to execute arbitrary JavaScript by bypassing MIME type validation and renaming uploaded fi…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (16.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Givanz Vvveb — versions 0, cc997d3359ea5e49a45c132f5dee3bc80fb441d7

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (technical-description, exploit)
disclosure@vulncheck.com (release-notes)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (third-party-advisory)
disclosure@vulncheck.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-34429?: CVE-2026-34429 is a medium-severity vulnerability in Givanz Vvveb, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-04-20.
How severe is CVE-2026-34429?: Medium severity. CVSS v3 base score is 5.4 out of 10.