Vulnerability in Discourse
CVE-2021-32788
Discourse is an open source discussion platform. In versions prior to 2.7.7 there are two bugs which led to the post creator of a whisper post being revealed to non-staff users. 1: Staff users that creates a whisper post in a personal message is revealed to non-staff participants of the personal message even though the whisper post cannot be seen by them. 2: When a whisper post is before the last post in a post stream, deleting the last post will result in the creator of the whisper post to be revealed to non-staff users as the last poster of the topic.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (57.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.8% 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: 0.009 · change: 0.000
Affected products
- Discourse — versions < 2.7.7
Weakness classification (CWE)
References
- github.com/discourse/discourse/security/advisories/GHSA-v6xg-q577-vc92 (Third Party Advisory)
- github.com/discourse/discourse/commit/680024f9071b7696e5a444a58791016c6dc1f1e5 (Patch, Third Party Advisory)
- github.com/discourse/discourse/commit/dbdf61196d9e964e8823793d2e7f856595fea4d9 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-32788?
- CVE-2021-32788 is a medium-severity vulnerability in Discourse, classified under Exposure of Resource to Wrong Sphere. CVSS score: 4.3/10. Published 2021-07-27.
- How severe is CVE-2021-32788?
- Medium severity. CVSS v3 base score is 4.3 out of 10.