CVE-2026-32273CWE-79

Discourse: XSS on category description update via API

Medium · published March 31, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
19.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00284 · 19.8th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-03-31T17:39Z
EPSS history
Timeline
  • 31 MAR 17:39Z
    Discourse: XSS on category description update via API
    cvelistv5