CVE-2022-23549

Discourse vulnerable to bypass of post max_length using HTML comments

Description

Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, users can create posts with raw body longer than the `max_length` site setting by including html comments that are not counted toward the character limit. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds.

Category

5.7
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.07%
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/commit/bf6b08670a927cc80bb090b7a2e710b4b554e6a8 third party advisory patch
https://github.com/discourse/discourse/security/advisories/GHSA-p47g-v5wr-p4xp third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-23549?
CVE-2022-23549 has been scored as a medium severity vulnerability.
How to fix CVE-2022-23549?
To fix CVE-2022-23549, 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-2022-23549 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-23549 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-2022-23549?
CVE-2022-23549 affects discourse discourse.
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