Medium 4.3Published Nov 1, 2025

CVE-2025-11983WP Discourse <= 2.5.9 - Authenticated (Author+) Information Exposure

Updated under an hour ago (Oct 26, 2026, 4:23 PM ET)

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It affects scossar WP Discourse. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for scossar WP Discourse

Exploited in the last 30 days

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: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-200
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Wordfence
NVD analysis: Deferred
Record last updated: Apr 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

scossar WP Discourse scossar:wp_discourse (from the name)	through 2.5.9	CNA record

References

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/6b1524f3-1c59-49a1-bbe3-94dcfd232b1d?source=cve
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=

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.