CVE-2022-36066

Discourse vulnerable to RCE via admins uploading maliciously zipped file

Description

Discourse is an open source discussion platform. In versions prior to 2.8.9 on the `stable` branch and prior to 2.9.0.beta10 on the `beta` and `tests-passed` branches, admins can upload a maliciously crafted Zip or Gzip Tar archive to write files at arbitrary locations and trigger remote code execution. The problem is patched in version 2.8.9 on the `stable` branch and version 2.9.0.beta10 on the `beta` and `tests-passed` branches. There are no known workarounds.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 1.08% Top 25%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: discourse discourse
Published at:
Updated at:

References

Link Tags
https://github.com/discourse/discourse/security/advisories/GHSA-grvh-qcpg-hfmv third party advisory
https://github.com/discourse/discourse/pull/18421 third party advisory patch
https://github.com/discourse/discourse/commit/b27d5626d208a22c516a0adfda7554b67b493835 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-36066?
CVE-2022-36066 has been scored as a critical severity vulnerability.
How to fix CVE-2022-36066?
To fix CVE-2022-36066, 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-2022-36066 being actively exploited in the wild?
It is possible that CVE-2022-36066 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-36066?
CVE-2022-36066 affects discourse discourse.
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