CVE-2026-35056CWE-94

XenForo Remote Code Execution via Authenticated Admin

High · published April 1, 2026

CVSS v4.0
8.6
EPSS
1%
Percentile
59.2
In the wild
Unconfirmed
What it is

XenForo before 2.3.9 and before 2.2.18 allows remote code execution (RCE) by authenticated, but malicious, admin users. An attacker with admin panel access can execute arbitrary code on the server.

The record
Technical detail
CVSS v4.0
8.6 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00896 · 59.2th percentile
Weakness
CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-04-01T00:30Z
EPSS history
Timeline
  • 01 APR 00:30Z
    XenForo Remote Code Execution via Authenticated Admin
    cvelistv5