Description

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 files to executable extensions. Attackers can prepend a GIF89a header to HTML/JavaScript payloads to bypass upload validation, rename the file to .html extension, and execute malicious scripts in an administrator's browser session to create backdoor accounts and upload malicious plugins for remote code execution.

INFO

Published Date :

2026-04-20T13:54:37.019Z

Last Modified :

2026-04-20T14:56:19.205Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2026-34429 vulnerability.

Vendors Products
Givanz
  • Vvveb
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34429.

URL Resource
https://delta.cyberm.ca/bugbin/ur66bvB7BYTC9y0eCIk3uzhZQgbjzAkG/ cve-icon cve-icon
https://github.com/givanz/Vvveb/commit/cc997d3359ea5e49a45c132f5dee3bc80fb441d7 cve-icon cve-icon
https://github.com/givanz/Vvveb/releases/tag/1.0.8.1 cve-icon cve-icon
https://www.vulncheck.com/advisories/vvveb-stored-xss-via-media-upload-and-rename cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact