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CVE-2026-24742— Discourse staff action logs expose sensitive information to moderators

CVSS 6.5 · Medium EPSS 0.04% · P13
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I. Basic Information for CVE-2026-24742

Vulnerability Information
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Vulnerability Title
Discourse staff action logs expose sensitive information to moderators
Source: NVD (National Vulnerability Database)
Vulnerability Description
Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, non-admin moderators can view sensitive information in staff action logs that should be restricted to administrators only. The exposed information includes webhook payload URLs and secrets, API key details, site setting changes, private message content, restricted category names and structures, and private chat channel titles. This allows moderators to bypass intended access controls and extract confidential data by monitoring the staff action logs. With leaked webhook secrets, an attacker could potentially spoof webhook events to integrated services. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. As a workaround, site administrators should review and limit moderator appointments to fully trusted users. There is no configuration-based workaround to prevent this access.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
Discourse 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Discourse是Discourse开源的一套开源的社区讨论平台。该平台包括社区、电子邮件和聊天室等功能。 Discourse 3.5.4之前版本、2025.11.2之前版本、2025.12.1之前版本和2026.1.0之前版本存在安全漏洞，该漏洞源于非管理员版主可以查看员工操作日志中的敏感信息，可能导致访问控制绕过和机密数据泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
discoursediscourse < 3.5.4 -

II. Public POCs for CVE-2026-24742

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III. Intelligence Information for CVE-2026-24742

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Same Patch Batch · discourse · 2026-01-28 · 14 CVEs total

CVE-2025-686627.6 HIGHFinalDestination hostname matching allows SSRF protection bypass
CVE-2025-684797.1 HIGHDiscourse subscriptions are susceptible to takeover
CVE-2025-689336.9 MEDIUMDiscourse non-admin moderators can exfiltrate private content via post ownership transfer
CVE-2026-218656.5 MEDIUMDiscourse topic conversion permission vulnerability for moderators
CVE-2025-689346.5 MEDIUMDiscourse Has Denial of Service (DoS) Vulnerability in Drafts Creation Endpoint
CVE-2025-677234.6 MEDIUMDiscourse vulnerable to stored Cross-site Scripting via Katex in discourse-math plugin
CVE-2025-664884.6 MEDIUMDiscourse allows script execution in uploaded HTML/XML files on S3
CVE-2025-686594.3 MEDIUMDiscourse has DoS vulnerability in username change endpoint
CVE-2026-23743Discourse allows permalinks to restricted resources to leak resource slugs to unauthorized
CVE-2025-69289Discourse has insecure default configuration that allows non-admin moderators to takeover
CVE-2025-69218Discourse moderators can access admin-only reports exposing private upload URLs
CVE-2025-68666Discourse users archives leaked to users with moderation privileges
CVE-2025-68660Discourse AI Discover's continue conversation allows threat actor to impersonate user

IV. Related Vulnerabilities

Same product: discourse
Same vendor: discourse
Same weakness: CWE-863

V. Comments for CVE-2026-24742

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