CVE-2022-39270

Arbitrary HTML injection in table-of-contents theme component in DiscoTOC

Description

DiscoTOC is a Discourse theme component that generates a table of contents for topics. Users that can create topics in TOC-enabled categories (and have sufficient trust level - configured in component's settings) are able to inject arbitrary HTML on that topic's page. The issue has been fixed on the `main` branch. Admins can update the theme component through the admin UI (Customize -> Themes -> Components -> DiscoTOC -> Check for Updates). Alternatively, admins can temporarily disable the DiscoTOC theme component.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.08%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: discourse DiscoTOC
Published at:
Updated at:

References

Link Tags
https://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h third party advisory
https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-39270?
CVE-2022-39270 has been scored as a medium severity vulnerability.
How to fix CVE-2022-39270?
To fix CVE-2022-39270, 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-2022-39270 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-39270 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-2022-39270?
CVE-2022-39270 affects discourse DiscoTOC.
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