Medium severity · published Jan 26, 2023
CVE-2023-22739
Discourse is an open source platform for community discussion
6.5
CVSS
0.9%
EPSS
No
On KEV
Description
Discourse is an open source platform for community discussion. Versions prior to 3.0.1 (stable), 3.1.0.beta2 (beta), and 3.1.0.beta2 (tests-passed) are subject to Allocation of Resources Without Limits or Throttling. As there is no limit on data contained in a draft, a malicious user can create an arbitrarily large draft, forcing the instance to a crawl. This issue is patched in versions 3.0.1 (stable), 3.1.0.beta2 (beta), and 3.1.0.beta2 (tests-passed). There are no workarounds.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
Discourse · Discourse
before 3.0.1; 3.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-22739
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-22739
Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-rqgr-g6v7-jcfc
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