CVE-2023-46130

Bypassing height value allowed in some theme components

Description

Discourse is an open source platform for community discussion. Prior to version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches, some theme components allow users to add svgs with unlimited `height` attributes, and this can affect the availability of subsequent replies in a topic. Most Discourse instances are unaffected, only instances with the svgbob or the mermaid theme component are within scope. The issue is patched in version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches. As a workaround, disable or remove the relevant theme components.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.16%
Vendor Advisory github.com
Affected: discourse discourse
Published at:
Updated at:

References

Link Tags
https://github.com/discourse/discourse/security/advisories/GHSA-c876-638r-vfcg vendor advisory
https://github.com/discourse/discourse/commit/6183d9633de873ac2b1e9cdb6ac1c94b4ffae9cb patch
https://github.com/discourse/discourse/commit/89a2e60706ce22e4afc463d03af2f34c53291800 patch

Frequently Asked Questions

What is the severity of CVE-2023-46130?
CVE-2023-46130 has been scored as a medium severity vulnerability.
How to fix CVE-2023-46130?
To fix CVE-2023-46130, 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-2023-46130 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-46130 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-2023-46130?
CVE-2023-46130 affects discourse discourse.
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