CVE-2026-32273

MEDIUM

Discourse: XSS on category description update via API

Title source: cna

Description

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 description string, which can lead to XSS attacks. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.

References (2)

[X_Refsource_Confirm] https://github.com/discourse/discourse/security/advisories/GHSA-h2h4-767x-6pc8

[X_Refsource_Misc] https://github.com/discourse/discourse/commit/05e3da2a670cfd499649128b6c955b552451240b

View Writeup ZIP pw:eip

Scores

CVSS v3 5.4

EPSS 0.0003

EPSS Percentile 8.8%

Attack Vector NETWORK

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

Details

CWE

CWE-79

Status published

Products (5)

discourse/discourse 2026.3.0 (2 CPE variants)

discourse/discourse 2026.1.0 - 2026.1.3

discourse/discourse >= 2026.1.0-latest, < 2026.1.3

discourse/discourse >= 2026.2.0-latest, < 2026.2.2

discourse/discourse >= 2026.3.0-latest, < 2026.3.0

Published Mar 31, 2026

Tracked Since Mar 31, 2026