CVE-2026-34427 HIGH

CVE-2026-34427: Vvveb < 1.0.8.1 Privilege Escalation via admin/user/save

Vendor Givanz
Product Vvveb
Weakness CWE-915
Published April 20, 2026
Last update May 8, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Vvveb prior to 1.0.8.1 contains a privilege escalation vulnerability in the admin user profile save endpoint that allows authenticated users to modify privileged fields on their own profile. Attackers can inject role_id=1 into profile save requests to escalate to Super Administrator privileges, enabling plugin upload functionality for remote code execution.

Key dates

02Disclosure timeline

April 20, 2026 CVE published
May 8, 2026 Record updated