Vulnerability Details : CVE-2021-41271
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.
Vulnerability category: Information leak
Products affected by CVE-2021-41271
- cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.8.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.8.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.8.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.8.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.8.0:beta5:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.8.0:beta6:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.8.0:beta7:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-41271
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 31 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-41271
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
3.9
|
1.4
|
NIST | |
4.8
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L |
2.2
|
2.5
|
GitHub, Inc. |
CWE ids for CVE-2021-41271
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: security-advisories@github.com (Primary)
References for CVE-2021-41271
-
https://github.com/discourse/discourse/security/advisories/GHSA-hf6r-mc9j-hf4p
Cache poisoning via maliciously-formed request · Advisory · discourse/discourse · GitHubThird Party Advisory
-
https://github.com/discourse/discourse/commit/2da0001965c6d8632d723c46ea5df9f22a1a23f1
SECURITY: Disallow caching of MIME/Content-Type errors (#14939) · discourse/discourse@2da0001 · GitHubPatch;Third Party Advisory
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