Vulnerability · Published Sep 19, 2026 · Assigned by Wordfence
CVE-2026-15463SSL Zen <= 4.7.42 - Reflected Cross-Site Scripting via 'uri' and 'host' Parameters
Medium 6.1
In plain English
A medium-severity cross-site scripting in SSL Zen — SSL Certificate Installer & HTTPS Redirects from sslzen. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).
Official description
The SSL Zen — SSL Certificate Installer & HTTPS Redirects plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'host' parameter in all versions up to, and including, 4.7.42 due to insufficient input sanitization and output escaping. 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. The vulnerability is only exploitable when in the system_requirements stage.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| sslzen | SSL Zen — SSL Certificate Installer & HTTPS Redirects | 0 – through 4.7.42 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5e392d3c-4a3d-4b5b-a149-70c9b58dca1a?source=cve
- https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.41/ssl_zen/classes/class.ssl_zen_messages.php#L44
- https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.41/ssl_zen/classes/class.ssl_zen_admin.php#L863
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3701590%40ssl-zen&new=3701590%40ssl-zen