CVE-2026-24742

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{}

{"analysis": {"en": {"generated_at": "2026-04-18T01:40:14.817031+00:00", "value": {"mitigation_remediation": ["Upgrade the Discourse installation to version 3.5.4 or newer, or to the 2025.11.2, 2025.12.1, or 2026.1.0 releases that contain the fix.", "Immediately review moderator appointments and limit them to fully trusted users only; remove any unnecessary or temporary moderator roles.", "Conduct a security audit of the staff action logs and monitor for any anomalous access or disclosure of confidential information."], "summary": {"action": "Apply Patch", "impact": "Sensitive Data Exposure"}, "threat_synthesis": {"affected_systems": "The vulnerable software is the Discourse discussion platform, specifically any instance running a version earlier than 3.5.4, 2025.11.2, 2025.12.1, or 2026.1.0. \n\nThe issue is identified for the official Discourse product; no other vendors are affected.", "description_and_impact": "Discourse versions before 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 allow moderators who are not administrators to view the staff action logs. The logs reveal webhook payload URLs, secrets, API key details, site setting changes, private message content, restricted category names, and private chat channel titles. This defect bypasses the platform\u2019s intended access controls, permitting confidential data extraction and potentially enabling attackers to forge webhook events to integrated services.", "risk_and_exploitability": "The CVSS score is 6.5, indicating a moderate severity. The EPSS score of less than 1% suggests that exploitation is currently unlikely, and the vulnerability is not listed in the CISA KEV catalog. Attackers would need to acquire moderator privileges or co\u2011operate with a moderator to exploit this flaw; no configuration\u2011based workaround exists, so the only mitigation is to patch or restrict moderator appointments. The vulnerability\u2019s primary impact is information disclosure, with the potential for further exploitation if webhook secrets are leaked."}}}}, "created": "2026-01-29T09:08:56.691820+00:00", "updated": "2026-04-18T01:45:33.401094+00:00", "vendors": ["discourse", "discourse$PRODUCT$discourse"]}