CVE-2025-39363 MEDIUM

CVE-2025-39363: WordPress Custom Login and Registration <= 1.0.0 - Cross Site Scripting (XSS) Vulnerability

Vendor Alphaefficiencyteam
Product Custom Login and Registration
Weakness CWE-79 · XSS
Published May 5, 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 AlphaEfficiencyTeam Custom Login and Registration allows Stored XSS.This issue affects Custom Login and Registration: from n/a through 1.0.0.

Explanation of Vulnerability in Simple Terms

02Summary

Custom Login and Registration versions up to 1.0.0 contain a cross-site scripting (XSS) vulnerability in user-supplied input that is not properly sanitized before display. An attacker with low-level authentication can inject malicious scripts that execute in other users' browsers when they view affected pages. The vulnerability requires user interaction and can affect confidentiality, integrity, and availability of the site.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers to steal data, modify page content, or perform actions on their behalf.

Potential impact on your site

04Site Impact

Authenticated users' sessions and data are at risk; attackers can deface pages, steal credentials, or redirect users to malicious sites.

Conditions required to exploit

05Prerequisites

Attacker must have a low-level user account and the victim must visit a page containing the injected payload.

Key dates

06Disclosure timeline

May 5, 2025 CVE published
April 28, 2026 Record updated