CVE Catalog

CVE-2025-11983

MediumCVSS 4.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.27%

18th percentile - higher than 18% of all known CVEs

Summary

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.

Risk Assessment

An authenticated attacker could steal Discourse API credentials, potentially leading to unauthorized access to the forum and further attacks. This may compromise data security and system integrity.

Recommendation

Update the WP Discourse plugin to a version above 2.5.9. Rotate Discourse API credentials and monitor for unusual outbound requests.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS