CVE-2025-11983
The WP Discourse plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 2.5.9.
Does this matter?
Lower severity and a low EPSS score (0.25%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.25% probability · 17th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/wp-discourse/tags/2.5.9/lib/discourse-comment.php#L211
- https://plugins.trac.wordpress.org/browser/wp-discourse/tags/2.5.9/lib/discourse-comment.php#L218
- https://plugins.trac.wordpress.org/browser/wp-discourse/tags/2.5.9/lib/plugin-utilities.php#L486
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3384149%40wp-discourse&new=3384149%40wp-discourse&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6b1524f3-1c59-49a1-bbe3-94dcfd232b1d?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.