High severity · published Nov 10, 2023
CVE-2023-47120
Discourse is an open source platform for community discussion
7.5
CVSS
1%
EPSS
No
On KEV
Description
Discourse is an open source platform for community discussion. In versions 3.1.0 through 3.1.2 of the `stable` branch and versions 3.1.0,beta6 through 3.2.0.beta2 of the `beta` and `tests-passed` branches, Redis memory can be depleted by crafting a site with an abnormally long favicon URL and drafting multiple posts which Onebox it. The issue is patched in version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
Discourse · Discourse
3.1.0 before 3.1.3; 3.1.0; 3.1.0; 3.1.0; 3.2.0; 3.2.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-47120
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-47120
Patch
https://github.com/discourse/discourse/commit/95a82d608d6377faf68a0e2c5d9640b043557852
Patch
https://github.com/discourse/discourse/commit/e910dd09140cb4abc3a563b95af4a137ca7fa0ce
Vendor Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-77cw-xhj8-hfp3
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