Description
Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, the Rich Text Editor rendered a chat-transcript username as HTML, allowing stored cross-site scripting. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| discourse | discourse | < 2026.1.6, >= 2026.5.0-latest, < 2026.5.2, >= 2026.6.0-latest, < 2026.6.1 | — |
References
- https://github.com/discourse/discourse/security/advisories/GHSA-wg48-qxjc-f459
- https://github.com/discourse/discourse/commit/32920affe4ad97b461ca2ae2f664c5fefc374baf
- https://github.com/discourse/discourse/commit/3fb1e8ead0d4f48d2cf55c8110825c7e8a6a45f5
- https://github.com/discourse/discourse/commit/7eb35d076ab9b6a612e86182336ce9787ce402ea
- https://github.com/discourse/discourse/commit/9633b8ecaf5a99f0407f5261b9bd1a05f7dac529