Information disclosure in Discourse
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 class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.010 (60.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.010 · change: +0.000
Affected products
- Discourse — versions >= 2.8.0, < 2.8.0.beta8, 2.8.0, < 2.7.10
Weakness classification (CWE)
References
- github.com/discourse/discourse/security/advisories/GHSA-hf6r-mc9j-hf4p (Third Party Advisory)
- github.com/discourse/discourse/commit/2da0001965c6d8632d723c46ea5df9f22a1a23f1 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-41271?
- CVE-2021-41271 is a medium-severity vulnerability in Discourse, classified under Information Disclosure. CVSS score: 4.8/10. Published 2021-11-15.
- How severe is CVE-2021-41271?
- Medium severity. CVSS v3 base score is 4.8 out of 10.