Security Advisory

CVE-2023-43658

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2023-10-16 21:28:57

Last updated 2024-09-16 15:48:22

Assigner GitHub_M

CVSS score 8.0

State PUBLISHED

Description

dicourse-calendar is a plugin for the Discourse messaging platform which adds the ability to create a dynamic calendar in the first post of a topic. Improper escaping of event titles could lead to Cross-site Scripting (XSS) within the 'email preview' UI when a site has CSP disabled. Having CSP disabled is a non-default configuration, so the vast majority of sites are unaffected. This problem is resolved in the latest version of the discourse-calendar plugin. Users are advised to upgrade. Users unable to upgrade should ensure CSP is enabled on the forum.

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