Discourse: Strip SQL comments and use non-recursive parameter interpolation in Data Explorer

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-72731
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 17:17:37 UTC
Updated2026-08-10 17:17:37 UTC
DescriptionDiscourse is an open-source discussion platform. From 2026.1.0-latest until 2026.1.7, 2026.6.2, 2026.7.1, and 2026.8.0-latest.1, anyone able to run a parameterized Data Explorer query, including non-staff members of a group a query is shared with, could craft parameter values that escaped the intended query and executed arbitrary SQL through plugins/discourse-data-explorer/lib/discourse_data_explorer/data_explorer.rb and plugins/discourse-data-explorer/lib/discourse_data_explorer/workflows/sql_action/v1.rb. Recursive parameter interpolation allowed one parameter value to introduce another parameter, and parameter declarations in SQL comments could be used to inject a statement. Queries run in a read-only transaction, so data could not be modified, but any table could be read. This issue is fixed in versions 2026.1.7, 2026.6.2, 2026.7.1, and 2026.8.0-latest.1.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Problem Types: CWE-89 | CWE-89 CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
3.1CNADECLARED7.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Discourse Discourse affected < 2026.1.7 Not specified
CNA Discourse Discourse affected >= 2026.6.0-latest, < 2026.6.2 Not specified
CNA Discourse Discourse affected >= 2026.7.0-latest, < 2026.7.1 Not specified
CNA Discourse Discourse affected >= 2026.8.0-latest, < 2026.8.0-latest.1 Not specified

References

ReferenceSourceLinkTags
github.com/discourse/discourse/commit/674ba6fc64184fd7d8e21183c5d8cb2236... [email protected] github.com
github.com/discourse/discourse/commit/ce9ccf24ec3538172dc8f8199728e08f63... [email protected] github.com
github.com/discourse/discourse/commit/3dc7f0da7aa18548281152e285244efb1c... [email protected] github.com
github.com/discourse/discourse/security/advisories/GHSA-wm63-83xp-59r5 [email protected] github.com
github.com/discourse/discourse/commit/2bdab888cef561348470dee204a4879d83... [email protected] github.com
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