Medium severity5.4NVD Advisory· Published Feb 26, 2026· Updated Jun 17, 2026
CVE-2026-28218
CVE-2026-28218
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.
Affected products
6cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*range: <2025.12.2
- cpe:2.3:a:discourse:discourse:2026.2.0:*:*:*:latest:*:*:*
- (no CPE)range: <2025.12.2, <2026.1.1, <2026.2.0
- (no CPE)range: < 2025.12.2
- Range: <2025.12.2, <2026.1.1, <2026.2.0
Patches
Vulnerability mechanics
References
1- github.com/discourse/discourse/security/advisories/GHSA-jxrc-72mr-mfh5nvdVendor Advisory
News mentions
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