CVE-2025-55707 HIGH

CVE-2025-55707: WordPress PostX Plugin <= 4.1.35 - Privilege Escalation Vulnerability

Vendor Wpxpo
Product PostX
Weakness CWE-266
Published December 18, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

7.2/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Incorrect Privilege Assignment vulnerability in WPXPO PostX ultimate-post allows Privilege Escalation.This issue affects PostX: from n/a through <= 4.1.35.

Explanation of Vulnerability in Simple Terms

02Summary

PostX versions up to 4.1.35 contain an improper access control vulnerability that allows high-privilege users to read, modify, or delete sensitive data and site functionality. The vulnerability requires administrator-level access to exploit and does not require user interaction. Sites running affected versions should update immediately to prevent unauthorized administrative actions.

What an attacker can do

03Attacker Capabilities

Read, modify, or delete site data and functionality if they have administrator access.

Potential impact on your site

04Site Impact

Administrators with compromised credentials can cause data loss, site defacement, or service disruption.

Conditions required to exploit

05Prerequisites

Attacker must have high-level administrative privileges on the site.

Key dates

06Disclosure timeline

December 18, 2025 CVE published
April 28, 2026 Record updated