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CVE-2022-31059

Discourse Calendar Event names susceptible to Cross-site Scripting

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.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Discourse
Products
Discourse Calendar
CVE-2023-43658

Improper escaping of user input in discourse-calendar

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.

CVSS 3.1 · 8 High EPSS < 1% KEV · Not listed
Vendors
Discourse
Products
Discourse Calendar
CVE-2024-21658

Insufficient control of region value length in discourse-calendar

discourse-calendar is a discourse plugin which adds the ability to create a dynamic calendar in the first post of a topic. The limit on region value length is too generous. This allows a malicious actor to cause a Discourse instance to use excessive bandwidth and disk space. This issue has been patched in main the main branch. There are no workarounds for this vulnerability. Please upgrade as soon as possible.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Discourse
Products
Discourse Calendar