What is CVE-2025-13676?

CVE-2025-13676 is a medium-severity vulnerability in Ostin654 Justclick Registration Plugin, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-01-24.

How severe is CVE-2025-13676?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Ostin654 Justclick Registration Plugin

CVE-2025-13676

The JustClick registration plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in all versions up to, and including, 0.1. This is due to insufficient input sanitization and output escaping on the `PHP_SELF` server variable. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (17.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Ostin654 Justclick Registration Plugin — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2025-13676?: CVE-2025-13676 is a medium-severity vulnerability in Ostin654 Justclick Registration Plugin, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-01-24.
How severe is CVE-2025-13676?: Medium severity. CVSS v3 base score is 6.1 out of 10.