CVE-2023-22455
high-risk
Published 2023-01-05
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, tag descriptions, which can be updated by moderators, can be used for cross-site scripting attacks. This vulnerability can lead to a full XSS on sites which have modified or disabled Discourse’s default Content Security Policy. Versions 2.8.14 and 3.0.0.beta16 contain a patch.
Do I need to act?
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0.46% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.8/10
Medium
NETWORK
/ LOW complexity
Affected Products (20)
Affected Vendors
References (4)
Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-5rq6-466r-6mr9
Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-5rq6-466r-6mr9
60
/ 100
high-risk
Severity
25/34 · High
Exploitability
2/34 · Minimal
Exposure
33/34 · Critical