What is CVE-2026-32273?

CVE-2026-32273 is a medium-severity vulnerability in Discourse, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-03-31.

How severe is CVE-2026-32273?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Discourse

CVE-2026-32273

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, updating a category description via API is not sanitizing the de…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (14.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Discourse — versions >= 2026.1.0-latest, < 2026.1.3, >= 2026.2.0-latest, < 2026.2.2, >= 2026.3.0-latest, < 2026.3.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

https://github.com/discourse/discourse/security/advisories/GHSA-h2h4-767x-6pc8 (x_refsource_CONFIRM)
https://github.com/discourse/discourse/commit/05e3da2a670cfd499649128b6c955b552451240b (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-32273?: CVE-2026-32273 is a medium-severity vulnerability in Discourse, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-03-31.
How severe is CVE-2026-32273?: Medium severity. CVSS v3 base score is 5.4 out of 10.