CVE-2026-32243
Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, an attacker with the ability to create shared AI conversations could inject arbitrary HTML and JavaScript via crafted conversation titles. This payload would execute in the browser of any user viewing the onebox preview, potentially allowing session hijacking or unauthorized actions on behalf of the victim. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.
- Affected products
- Discourse
- Discourse
- < 2026.1.3, 2026.2.2, 2026.3.0
- Fix
- Available
- CVSS 3.1
- 6.1 MEDIUM
- EPSS
- 0.2% (7th percentile)
- Weakness
- CWE-79
- NVD status
- Analyzed
- Published
- 2026-03-31
No indexed exploits for CVE-2026-32243 yet
Our index is partial: it proves presence, never absence
No exploit for CVE-2026-32243 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.