CVE-2022-46148

Discourse allows self-XSS through malicious composer message

Description

Discourse is an open-source messaging platform. In versions 2.8.10 and prior on the `stable` branch and versions 2.9.0.beta11 and prior on the `beta` and `tests-passed` branches, users composing malicious messages and navigating to drafts page could self-XSS. This vulnerability can lead to a full XSS on sites which have modified or disabled Discourse’s default Content Security Policy. This issue is patched in the latest stable, beta and tests-passed versions of Discourse.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.11%
Third-Party Advisory github.com
Affected: discourse discourse
Published at:
Updated at:

References

Link Tags
https://github.com/discourse/discourse/security/advisories/GHSA-c5h6-6gg5-84fh third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-46148?
CVE-2022-46148 has been scored as a high severity vulnerability.
How to fix CVE-2022-46148?
To fix CVE-2022-46148, 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-2022-46148 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-46148 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-2022-46148?
CVE-2022-46148 affects discourse discourse.
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