CVE-2025-39542 HIGH

CVE-2025-39542: WordPress Xelion Webchat plugin <= 9.1.0 - Privilege Escalation Vulnerability

Vendor Jauhari Xelion
Product Xelion Webchat
Weakness CWE-266
Published April 17, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Incorrect Privilege Assignment vulnerability in Jauhari Xelion Xelion Webchat xelion-webchat allows Privilege Escalation.This issue affects Xelion Webchat: from n/a through <= 9.1.0.

Explanation of Vulnerability in Simple Terms

02Summary

Xelion Webchat versions 9.1.0 and earlier contain an improper access control vulnerability. An authenticated user with low privileges can read, modify, or delete sensitive data and disrupt service availability. The vulnerability requires valid login credentials but no additional user interaction. Organizations running affected versions should update immediately.

What an attacker can do

03Attacker Capabilities

Read, modify, or delete sensitive data; disrupt service availability.

Potential impact on your site

04Site Impact

Authenticated users can access and alter data beyond their intended permissions, risking data loss and service disruption.

Conditions required to exploit

05Prerequisites

Valid login credentials with low-level user privileges.

Key dates

06Disclosure timeline

April 17, 2025 CVE published
April 28, 2026 Record updated