CVE-2025-11983

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

MEDIUM
4.3
CVSS Score
Published: November 1, 2025 at 05:40 AM UTC
Updated: October 18, 2026 at 09:10 PM UTC
1 product affected across 1 vendorWP Discourse

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

WP Discourse· Scossarwordpress-plugin
90%
0 ≤ v ≤ 2.5.90

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMWordfence
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-200

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