CVE-2023-43658 – Improper escaping of user input in discourse-calendar
https://notcve.org/view.php?id=CVE-2023-43658
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. • https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP https://github.com/discourse/discourse-calendar/commit/9788310906febb36822d6823d14f1059c39644de https://github.com/discourse/discourse-calendar/security/advisories/GHSA-3fwj-f6ww-7hr6 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVE-2022-31059 – Discourse Calendar Event names susceptible to Cross-site Scripting
https://notcve.org/view.php?id=CVE-2022-31059
Discourse Calendar is a calendar plugin for Discourse, an open-source messaging app. Prior to version 1.0.1, parsing and rendering of Event names can be susceptible to cross-site scripting (XSS) attacks. This vulnerability only affects sites which have modified or disabled Discourse’s default Content Security Policy. This issue is patched in version 1.0.1 of the Discourse Calendar plugin. As a workaround, ensure that the Content Security Policy is enabled, and has not been modified in a way which would make it more vulnerable to XSS attacks. • https://github.com/discourse/discourse-calendar/commit/2719b9e81994e961bf8c4e12b4556dc9777dd62f https://github.com/discourse/discourse-calendar/pull/280 https://github.com/discourse/discourse-calendar/security/advisories/GHSA-c783-x9vm-xxp5 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •