---
id: CVE-2026-17602
title: >-
  The SSL Zen — SSL Certificate Installer & HTTPS Redirects plugin for WordPress
  is vulnerable to Directory Traversal in all versions up to, and including,
  4.7.42 via the 'file_name' parameter parameter
summary: >-
  The SSL Zen — SSL Certificate Installer & HTTPS Redirects plugin for WordPress
  is vulnerable to Directory Traversal in all versions up to, and including,
  4.7.42 via the 'file_name' parameter parameter. This makes it possible for
  authenti…
severity: medium
cvss: 4.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-22
vendor: sslzen
product: SSL Zen — SSL Certificate Installer & HTTPS Redirects
affected:
  - ssl_zen_ssl_certificate_installer_https_redirects <= 4.7.42
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T13:08:08.163'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-17602'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.12/ssl_zen/classes/class.ssl_zen_admin.php#L492
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.12/ssl_zen/classes/class.ssl_zen_admin.php#L496
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.12/ssl_zen/classes/class.ssl_zen_admin.php#L54
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.42/ssl_zen/classes/class.ssl_zen_admin.php#L492
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.42/ssl_zen/classes/class.ssl_zen_admin.php#L496
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.42/ssl_zen/classes/class.ssl_zen_admin.php#L54
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3701590%40ssl-zen&new=3701590%40ssl-zen
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/6bf4cc39-3a26-462d-a540-2d53e53dfa66?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-25T08:01:56.743Z'
---

## Overview

The SSL Zen — SSL Certificate Installer & HTTPS Redirects plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 4.7.42 via the 'file_name' parameter parameter. This makes it possible for authenticated attackers, with administrator-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.