CVE-2023-22453

Discourse vulnerable to exposure of user post counts per topic to unauthorized users

Description

Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 3.0.0.beta16 on the `beta` and `tests-passed` branches, the number of times a user posted in an arbitrary topic is exposed to unauthorized users through the `/u/username.json` endpoint. The issue is patched in version 2.8.14 and 3.0.0.beta16. There is no known workaround.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.09%
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-xx97-6494-p2rv third party advisory
https://github.com/discourse/discourse/commit/cbcf8a064b4889a19c991641e09c399bfa1ef2ad third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2023-22453?
CVE-2023-22453 has been scored as a medium severity vulnerability.
How to fix CVE-2023-22453?
To fix CVE-2023-22453, 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-2023-22453 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-22453 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-2023-22453?
CVE-2023-22453 affects discourse discourse.
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