Information disclosure in Discourse
CVE-2021-37703
Discourse is an open-source platform for community discussion. In Discourse before versions 2.7.8 and 2.8.0.beta5, a user's read state for a topic such as the last read post number and the notification level is exposed.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.008 (56.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Discourse — versions 2.8.0, < 2.7.8
Weakness classification (CWE)
References
- github.com/discourse/discourse/security/advisories/GHSA-gq2h-qhg2-phf9 (Third Party Advisory)
- github.com/discourse/discourse/commit/aed65ec16d38886d7be7209d8c02df4ffd4937a4 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-37703?
- CVE-2021-37703 is a medium-severity vulnerability in Discourse, classified under Information Disclosure. CVSS score: 4.3/10. Published 2021-08-13.
- How severe is CVE-2021-37703?
- Medium severity. CVSS v3 base score is 4.3 out of 10.