Vulnerability · Published Dec 5, 2025 · Assigned by Wordfence
CVE-2025-13739CryptX <= 4.0.5 - Authenticated (Contributor+) Stored Cross-Site Scripting
Medium 6.4
In plain English
A medium-severity cross-site scripting in CryptX from d3395. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Official description
The CryptX plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `cryptx` shortcode in all versions up to, and including, 4.0.5 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2f8cb7d7-eb40-403e-85de-c16200ee424d?source=cve
- https://plugins.trac.wordpress.org/browser/cryptx/tags/4.0.4/classes/CryptX.php#L149
- https://plugins.trac.wordpress.org/browser/cryptx/tags/4.0.4/classes/CryptX.php#L237
- https://plugins.trac.wordpress.org/browser/cryptx/tags/4.0.4/classes/CryptX.php#L604
- https://plugins.trac.wordpress.org/browser/cryptx/tags/4.0.4/classes/CryptX.php#L1295
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3416363%40cryptx&new=3416363%40cryptx&sfp_email=&sfph_mail=