Medium severity · published Nov 15, 2021
CVE-2021-41271
Discourse is a platform for community discussion
5.3
CVSS
1%
EPSS
No
On KEV
Description
Discourse is a platform for community discussion. In affected versions a maliciously crafted request could cause an error response to be cached by intermediate proxies. This could cause a loss of confidentiality for some content. This issue is patched in the latest stable, beta and tests-passed versions of Discourse.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
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
through 2.7.9; 2.8.0; 2.8.0; 2.8.0; 2.8.0; 2.8.0; +2 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41271
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41271
Patch
https://github.com/discourse/discourse/commit/2da0001965c6d8632d723c46ea5df9f22a1a23f1
Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-hf6r-mc9j-hf4p
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