CVE-2026-28218

MEDIUM

Discourse <2025.12.2/2026.1.1/2026.2.0 - SQL Injection

Title source: llm
STIX 2.1

Description

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, fail-open access control in Data Explorer plugin allows any authenticated user to execute SQL queries that have no explicit group assignments, including built-in system queries. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. As a workaround, either explicitly set group permissions on each Data Explorer query that doesn't have permissions, or disable discourse-data-explorer plugin.

References (1)

Core 1
Core References

Scores

CVSS v3 5.4
EPSS 0.0004
EPSS Percentile 12.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-284
Status published
Products (2)
discourse/discourse 2026.2.0
discourse/discourse < 2025.12.2
Published Feb 26, 2026
Tracked Since Feb 27, 2026