CVE-2021-43793 json
Bypass of Poll voting limits in Discourse
published 2021-12-01 4 y ago modified 2026-09-08 2 mo ago also BIT-discourse-2021-43793 , EUVD-2021-30689 , GHSA-jq7h-44vc-h6qx
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
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
Patch / fix
- bitnami discourse 2.7.11
- discourse discourse 2.7.11
Exploit prediction
0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | discourse | <2.7.11 |
2.7.11 |
Affected products
- discourse discourse
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
References
-
github.com
/discourse/discourse/commit/0c6b9df77bac9c6f7c7e2eadf6fe100064afdeab
patch, third-party-advisory, advisory
-
github.com
/discourse/discourse/commit/1d0faedfbc3a8b77b971dc70d25e30791dbb6e0b
patch, third-party-advisory, advisory
-
github.com
/discourse/discourse/security/advisories/GHSA-jq7h-44vc-h6qx
third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-43793
web
Sources
- CVE List CVE-2021-43793
- NVD CVE-2021-43793
- OSV BIT-discourse-2021-43793
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