PT-2023-28904 · Discourse · Discourse Calendar

Pmusaraj · Publicado 2023-10-16 · Atualizado 2023-10-20 · CVE-2023-43658

Positive Technologies (AI Summary)

CVSS v3.1

8.0

Alta

Vetor base

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

Name of the Vulnerable Software and Affected Versions discourse-calendar (affected versions not specified)

Description The discourse-calendar plugin for the Discourse messaging platform is affected by an issue where improper escaping of event titles could lead to Cross-site Scripting (XSS) within the 'email preview' UI when a site has CSP disabled. This is a non-default configuration, so the vast majority of sites are unaffected.

Recommendations To resolve the issue, users are advised to upgrade to the latest version of the discourse-calendar plugin. If an upgrade is not possible, users should ensure CSP is enabled on the forum as a temporary workaround.

Exploit

Correção

XSS

Enumeração de Fraquezas

CWE-79

Identificadores relacionados

CVE-2023-43658

GHSA-3FWJ-F6WW-7HR6

Produtos afetados

Discourse Calendar

Referências · 11

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43658.json · Exploit
• https://github.com/discourse/discourse-calendar/commit/9788310906febb36822d6823d14f1059c39644de · Correção
• https://github.com/discourse/discourse-calendar/security/advisories/GHSA-3fwj-f6ww-7hr6 · Aviso do Fabricante
• https://osv.dev/vulnerability/CVE-2023-43658 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2023-43658 · Nota de Segurança
• https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP · Nota
• https://t.me/cibsecurity/72388 · Publicação no Telegram
• https://twitter.com/cracbot/status/1714396852056121392 · Publicação no Twitter
• https://t.me/cvenotify/59550 · Publicação no Telegram
• https://twitter.com/CVEnew/status/1714032990181822903 · Publicação no Twitter
• https://twitter.com/VulmonFeeds/status/1714079716561301681 · Publicação no Twitter