CVE-2026-15038CWE-287

CVE-2026-15038

Critical · published August 9, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
54.8
In the wild
Unconfirmed
What it is

The InfiniteWP Client WordPress plugin before 1.13.6 does not properly verify the site-connection state and the authenticity of requests to its remote-management endpoint on WordPress Multisite installations, allowing unauthenticated attackers to bind their own key, hijack an administrator session, and take over the entire network, leading to remote code execution.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00759 · 54.8th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-08-09T10:17Z
References (1)
EPSS history
Timeline
  • 09 AUG 06:00Z
    InfiniteWP Client < 1.13.6 - Unauthenticated Administrator Account Takeover on Multisite
    cvelistv5