PT-2026-29306 · Discourse · Discourse

Martin-Brennan · Publicado 2026-03-31 · Atualizado 2026-04-07 · CVE-2026-32273

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Média

Vetor base

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

Name of the Vulnerable Software and Affected Versions Discourse versions 2026.1.0 through 2026.1.2, 2026.2.0 through 2026.2.1, and 2026.3.0 through 2026.3.0

Description Discourse, an open-source discussion platform, is affected by a cross-site scripting (XSS) issue. Updating a category description through the API does not properly sanitize the input string, potentially allowing for the injection of malicious scripts. The API endpoint used for updating category descriptions is vulnerable. The description parameter is not sanitized, enabling XSS attacks.

Recommendations Update to Discourse version 2026.1.3 or later. Update to Discourse version 2026.2.2 or later. Update to Discourse version 2026.3.0 or later.

Exploit

Correção

XSS

Enumeração de Fraquezas

CWE-79

Identificadores relacionados

BIT-DISCOURSE-2026-32273

CVE-2026-32273

GHSA-H2H4-767X-6PC8

Produtos afetados

Discourse

Referências · 6

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32273.json · Exploit
• https://github.com/discourse/discourse/security/advisories/GHSA-h2h4-767x-6pc8 · Nota
• https://github.com/discourse/discourse/commit/05e3da2a670cfd499649128b6c955b552451240b · Nota
• https://osv.dev/vulnerability/CVE-2026-32273 · Aviso do Fabricante
• https://osv.dev/vulnerability/BIT-discourse-2026-32273 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2026-32273 · Nota de Segurança