CVE-2022-31059

Discourse Calendar Event names susceptible to Cross-site Scripting

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.08%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: discourse discourse-calendar
Published at:
Updated at:

References

Link Tags
https://github.com/discourse/discourse-calendar/security/advisories/GHSA-c783-x9vm-xxp5 third party advisory
https://github.com/discourse/discourse-calendar/pull/280 patch third party advisory issue tracking
https://github.com/discourse/discourse-calendar/commit/2719b9e81994e961bf8c4e12b4556dc9777dd62f third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-31059?
CVE-2022-31059 has been scored as a medium severity vulnerability.
How to fix CVE-2022-31059?
To fix CVE-2022-31059, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-31059 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-31059 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-31059?
CVE-2022-31059 affects discourse discourse-calendar.
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