Privilege escalation in Discourse

CVE-2021-43793

Discourse is an open source discussion platform. In affected versions a vulnerability in the Polls feature allowed users to vote multiple times in a single-option poll. The problem is patched in the latest tests-passed, beta and stable versions of Discourse

Vulnerability class: Privilege Escalation

EPSS: 0.008 (51.4th percentile) — read the EPSS interpretation.

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:N/I:L/A:N.

Affected products

  • Discourse — versions stable < 2.7.11, tests-passed < 2.8.0.beta9, 2.8.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-43793?
CVE-2021-43793 is a medium-severity vulnerability in Discourse, classified under Improper Privilege Management. CVSS score: 4.3/10. Published 2021-12-01.
How severe is CVE-2021-43793?
Medium severity. CVSS v3 base score is 4.3 out of 10.