CVE-2023-47119

HTML injection in oneboxed links

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 links can inject arbitrary HTML tags when rendered through our Onebox engine. 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. There are no known workarounds.

Categories

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 8.07% Top 10%
Vendor Advisory github.com
Affected: discourse discourse
Published at:
Updated at:

References

Link Tags
https://github.com/discourse/discourse/security/advisories/GHSA-j95w-5hvx-jp5w vendor advisory
https://github.com/discourse/discourse/commit/628b293ff53fb617b3464dd27268aec84388cc09 patch
https://github.com/discourse/discourse/commit/d78357917c6a917a8a27af68756228e89c69321c patch

Frequently Asked Questions

What is the severity of CVE-2023-47119?
CVE-2023-47119 has been scored as a medium severity vulnerability.
How to fix CVE-2023-47119?
To fix CVE-2023-47119, 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-2023-47119 being actively exploited in the wild?
It is possible that CVE-2023-47119 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~8% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-47119?
CVE-2023-47119 affects discourse discourse.
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