Vulnerability Description
The WP Discourse plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 2.5.9. This is due to the plugin unconditionally sending Discourse API credentials (Api-Key and Api-Username headers) to any host specified in a post's discourse_permalink custom field during comment synchronization. This makes it possible for authenticated attackers, with author-level access and above, to exfiltrate sensitive Discourse API credentials to attacker-controlled servers, as well as query internal services and potentially perform further attacks.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/wp-discourse/tags/2.5.9/lib/discourse
- https://plugins.trac.wordpress.org/browser/wp-discourse/tags/2.5.9/lib/discourse
- https://plugins.trac.wordpress.org/browser/wp-discourse/tags/2.5.9/lib/plugin-ut
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6b1524f3-1c59-49a1-bbe
FAQ
What is CVE-2025-11983?
CVE-2025-11983 is a vulnerability with a CVSS score of 4.3 (MEDIUM). The WP Discourse plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 2.5.9. This is due to the plugin unconditionally sending Discourse API credentials (Ap...
How severe is CVE-2025-11983?
CVE-2025-11983 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-11983?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.