CVE-2022-31059 Information

Description

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.

Reference

https://github.com/discourse/discourse-calendar/security/advisories/GHSA-c783-x9vm-xxp5 https://github.com/discourse/discourse-calendar/pull/280 https://github.com/discourse/discourse-calendar/commit/2719b9e81994e961bf8c4e12b4556dc9777dd62f