Vulnerability Description
The WP CTA plugin for WordPress is vulnerable to Server-Side Request Forgery via the 'sticky_s_media' parameter in imported JSON files in all versions up to, and including, 2.1.2. This is due to the import_sidebars() function passing user-supplied URLs from imported JSON data to file_get_contents() with only FILTER_VALIDATE_URL validation (which allows internal IPs). This makes it possible for authenticated attackers, with Administrator-level access and above, to make web requests to arbitrary locations originating from the web application, which can be used to query and modify information from internal services. The response content is saved as a WordPress media attachment, making this a full-read SSRF.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/easy-sticky-sidebar/trunk/inc/import-
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new
- https://www.wordfence.com/threat-intel/vulnerabilities/id/df5fc86f-e4ba-424b-bec
FAQ
What is CVE-2026-6089?
CVE-2026-6089 is a vulnerability with a CVSS score of 4.9 (MEDIUM). The WP CTA plugin for WordPress is vulnerable to Server-Side Request Forgery via the 'sticky_s_media' parameter in imported JSON files in all versions up to, and including, 2.1.2. This is due to the i...
How severe is CVE-2026-6089?
CVE-2026-6089 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-6089?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.