CVE-2026-34427CWE-915

Vvveb < 1.0.8.1 Privilege Escalation via admin/user/save

High · published April 20, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
61.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
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
EPSS
0.00962 · 61.3th percentile
Weakness
CWE-915 · Improperly Controlled Modification of Dynamically-Determined Object Attributes
Published
2026-04-20T13:55Z
EPSS history
Timeline
  • 20 APR 13:55Z
    Vvveb < 1.0.8.1 Privilege Escalation via admin/user/save
    cvelistv5