CVE-2026-72731
Discourse: Strip SQL comments and use non-recursive parameter interpolation in Data Explorer
- State
- Published
- Severity
- 7.1 High
- Published
- Aug 10, 2026
- Updated
- Aug 10, 2026
- Reserved
- Aug 10, 2026
Description
Discourse 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.1 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N | GitHub_M |
Weaknesses
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected Products
| Product | Versions |
|---|---|
discoursediscourse |
|
References
- https://github.com/discourse/discourse/security/advisories/GHSA-wm63-83xp-59r5
- https://github.com/discourse/discourse/commit/2bdab888cef561348470dee204a4879d83fbb5c3
- https://github.com/discourse/discourse/commit/3dc7f0da7aa18548281152e285244efb1cc8ad0d
- https://github.com/discourse/discourse/commit/674ba6fc64184fd7d8e21183c5d8cb22367faa6e
- https://github.com/discourse/discourse/commit/ce9ccf24ec3538172dc8f8199728e08f63e57693
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