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.

• CWE-79

• https://github.com/discourse/discourse-calendar/commit/2719b9e81994e961bf8c4e12b4556dc9777dd62fPatch, Third Party Advisory
• https://github.com/discourse/discourse-calendar/pull/280Issue Tracking, Patch, Third Party Advisory
• https://github.com/discourse/discourse-calendar/security/advisories/GHSA-c783-x9vm-xxp5Third Party Advisory
• https://github.com/discourse/discourse-calendar/commit/2719b9e81994e961bf8c4e12b4556dc9777dd62fPatch, Third Party Advisory
• https://github.com/discourse/discourse-calendar/pull/280Issue Tracking, Patch, Third Party Advisory
• https://github.com/discourse/discourse-calendar/security/advisories/GHSA-c783-x9vm-xxp5Third Party Advisory

Published

Jun 14, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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