CVE-2025-13676: JustClick registration plugin · Cross-site Scripting
Affects JustClick registration pluginSource CVE Database V5
Not known to be exploited · CVSS 6.1 Medium.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 24 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| ostin654JustClick registration plugin | Affected
| Fixed in– |
AI-suggested
Until a fix is released, users should consider disabling the JustClick registration plugin or implementing web application firewall (WAF) rules to detect and block malicious payloads targeting the PHP_SELF parameter. Avoid clicking on suspicious links that may exploit this vulnerability.
Description
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.
References
- wordfence.com/threat-intel/vulnerabilities/id/f1420ec8-55e4-448d-8230-228d1e566b97?source=cve (opens in a new tab)
- plugins.trac.wordpress.org/browser/justclick-subscriber/trunk/justclick.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/justclick-subscriber/tags/0.1/justclick.php (opens in a new tab)