Vulnerability Report

CVE-2026-32273

Title: XSS via Unsanitized Category Description API Update

XSS

Proof Of Concept

No public PoC currently indexed for CVE-2026-32273.

CWE Category CWE-79

Published Date Mar 31, 2026

Modified Date Apr 09, 2026

Exploit Status Not Found

Score 5.4 CVSS v3.1

Exploit Probability (EPSS)

0.04%

Vulnerability Summary

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 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.

Impacted Vendors

discourse 1

Reference Links

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

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.4

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-32273 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

April 09, 2026 MODIFIED

Vulnerability data updated via NVD.

April 09, 2026 MODIFIED

Vulnerability data updated via NVD.

April 01, 2026 MODIFIED

Vulnerability data updated via NVD.

March 31, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction REQUIRED

CVSS Vector String


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

Affected Stack

No specific products linked.