Skip to main content

Discourse EUVD-2026-17548

| CVE-2026-32143 MEDIUM
Information Exposure (CWE-200)
2026-03-31 GitHub_M
5.3
CVSS 4.0 · GitHub Advisory
Share

Severity by source

GitHub Advisory PRIMARY
5.3 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

4
Patch available
Apr 16, 2026 - 05:29 EUVD
2026.3.0,2026.2.2,2026.1.3
EUVD ID Assigned
Mar 31, 2026 - 18:16 euvd
EUVD-2026-17548
Analysis Generated
Mar 31, 2026 - 18:16 vuln.today
CVE Published
Mar 31, 2026 - 17:39 nvd
MEDIUM 5.3

DescriptionGitHub Advisory

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, moderators could export CSV data for admin-restricted reports, bypassing the report visibility restrictions. This could expose sensitive operational data intended only for admins. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.

AnalysisAI

Discourse moderators can export CSV data from admin-restricted reports in versions 2026.1.0-2026.1.2, 2026.2.0-2026.2.1, and 2026.3.0-beta, circumventing role-based access controls and exposing sensitive operational data intended exclusively for administrators. The vulnerability requires authenticated moderator access but carries low confidentiality impact (CVSS 5.3). …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts

Free forever · No credit card required

Vulnerability AssessmentAI

Risk Assessment The CVSS 5.3 score reflects a network-accessible vulnerability requiring low privileges (authenticated moderator account) with low confidentiality impact and no integrity or availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated Discourse moderator with standard report-viewing privileges navigates to an admin-restricted report (e.g., monthly user suspension analytics or abuse complaint summaries) and selects the CSV export option. Due to the missing authorization check, the export succeeds despite the report being flagged as admin-only, returning sensitive operational data that the moderator should not access. …
Remediation Upgrade to Discourse 2026.1.3, 2026.2.2, or 2026.3.0 (or later) depending on your current version branch. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

Share

EUVD-2026-17548 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy