CVE-2026-45435 MEDIUM

CVE-2026-45435: WordPress WP Activity Log plugin <= 5.6.3 - Cross Site Scripting (XSS) vulnerability

Vendor Melapress
Product WP Activity Log
Weakness CWE-79 · XSS
Published May 25, 2026
Last update May 26, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Melapress WP Activity Log allows DOM-Based XSS. This issue affects WP Activity Log: from n/a through 5.6.3.

Explanation of Vulnerability in Simple Terms

02Summary

WP Activity Log versions up to 5.6.3 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other users viewing activity logs. The vulnerability requires user interaction and affects the integrity and confidentiality of site data.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers when they view activity logs.

Potential impact on your site

04Site Impact

Site admins and users viewing activity logs could be compromised; attackers could steal session tokens or perform actions as logged-in users.

Conditions required to exploit

05Prerequisites

Attacker must have low-level authenticated access; victim must view the affected activity log page.

Key dates

06Disclosure timeline

May 25, 2026 CVE published
May 26, 2026 Record updated

Related vulnerabilities

08Related CVE