Incorrect authorization in WordPress - #VU151457
Published: September 20, 2026
Vulnerability identifier: #VU151457
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to reparent comments onto posts they cannot edit.
The vulnerability exists due to improper authorization in comment reparenting functionality when processing requests to reparent comments. A remote user can send a request to reparent a comment they created on their own post to a post they cannot edit.
An Author role suffices for exploitation.
Affected software
WordPress
Remediation
Install security update from vendor's website.
WordPress - addressed in versions 5.3.24, 5.4.22, 5.5.21, 5.6.20, 5.7.18, 5.8.16, 5.9.17, 6.0.15, 6.1.13, 6.2.12, 6.3.11, 6.4.11, 6.5.11, 6.6.8, 6.7.8, 6.8.9, 6.9.8, 7.0.5, 7.1.1