πŸ›‘οΈ CVE-2026-34429
🟑 CVSS 5.4 β€” Medium βœ… No Known Exploit CWE-79 NVD
5.4
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Vvveb prior toΒ 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.

Details

Severity MEDIUM
CVSS Score 5.4
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE CWE-79
Public Exploit βœ… No
Source NVD
Published 2026-04-20
Updated 2026-06-02
Modified 2026-05-07
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown β€” β€”

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