CVE-2026-32273

MEDIUM

Discourse: XSS on category description update via API

Title source: cna
STIX 2.1

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)

Core 2

Scores

CVSS v3 5.4
EPSS 0.0017
EPSS Percentile 6.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

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