CVE-2025-63021 MEDIUM

CVE-2025-63021: WordPress Valenti Engine plugin <= 1.0.3 - Cross Site Scripting (XSS) vulnerability

Vendor Codetipi
Product Valenti Engine
Weakness CWE-79 · XSS
Published December 31, 2025
Last update April 28, 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 codetipi Valenti Engine valenti-engine allows DOM-Based XSS.This issue affects Valenti Engine: from n/a through <= 1.0.3.

Explanation of Vulnerability in Simple Terms

02Summary

Valenti Engine versions 1.0.3 and earlier contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. An attacker with low-level account access can craft a request that, when visited by another user, executes arbitrary JavaScript in their browser. This can lead to session hijacking, credential theft, or unauthorized actions performed on behalf of the victim.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in other users' browsers to steal sessions or perform unauthorized actions.

Potential impact on your site

04Site Impact

Authenticated users can be compromised; attackers may steal admin sessions or modify site content via victim browsers.

Conditions required to exploit

05Prerequisites

Attacker needs a low-privilege account on the site; victim must visit a page containing the malicious payload.

Key dates

06Disclosure timeline

December 31, 2025 CVE published
April 28, 2026 Record updated