Medium severity · published Sep 29, 2022
CVE-2022-39226
Discourse user profile location and website fields were not sufficiently length-limited
4.3
CVSS
1%
EPSS
No
On KEV
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, a malicious actor can add large payloads of text into the Location and Website fields of a user profile, which causes issues for other users when loading that profile. A fix to limit the length of user input for these fields is included 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
discourse · discourse
< 2.8.9; >= 2.9.0.beta0, < 2.9.0.beta10 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-39226
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-39226
Patch
https://github.com/discourse/discourse/commit/e69f7d2fd9c977dedbdb17f6813651e2a45bfb71
Patch
https://github.com/discourse/discourse/pull/18302
Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-jw3q-xg5g-qjrw
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