CVE-2026-33291

MEDIUM
2026-03-20 GitHub_M
5.4
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 20, 2026 - 23:16 vuln.today
CVE Published
Mar 20, 2026 - 22:56 nvd
MEDIUM 5.4

Tags

Authentication Bypass

Description

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, moderators can create Zendesk tickets for topics they do not have access to view. This affects all forums that use the Zendesk plugin. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

Analysis

A broken access control vulnerability in Discourse versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 allows moderators to create Zendesk support tickets for topics they lack permission to view, bypassing intended access restrictions. This affects all Discourse forums utilizing the Zendesk plugin integration. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +27
POC: 0

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CVE-2026-33291 vulnerability details – vuln.today
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