CVE-2023-23621
high-risk
Published 2023-01-28
Discourse is an open-source discussion platform. Prior to version 3.0.1 on the `stable` branch and version 3.1.0.beta2 on the `beta` and `tests-passed` branches, a malicious user can cause a regular expression denial of service using a carefully crafted user agent. This issue is patched in version 3.0.1 on the `stable` branch and version 3.1.0.beta2 on the `beta` and `tests-passed` branches. There are no known workarounds.
Do I need to act?
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0.40% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.6/10
High
NETWORK
/ LOW complexity
Affected Products (20)
Affected Vendors
References (6)
Issue Tracking
https://github.com/discourse/discourse/pull/20002
Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-mrfp-54hf-jrcv
Issue Tracking
https://github.com/discourse/discourse/pull/20002
Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-mrfp-54hf-jrcv
64
/ 100
high-risk
Severity
29/34 · Critical
Exploitability
2/34 · Minimal
Exposure
33/34 · Critical