CVE-2023-43814 Exposure of poll options and votes to unauthorized users in Discourse
Attackers can view private poll options and vote counts via an exposed endpoint, leaking sensitive data to unauthorized users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-43814?
CVE-2023-43814 is a low-severity missing authorization vulnerability in Discourse Discourse, published on 16 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Discourse is an open source platform for community discussion. Attackers with details specific to a poll in a topic can use the `/polls/grouped_poll_results` endpoint to view the content of options in the poll and the number of votes for groups of poll participants. This impacts private polls where the results were intended to only be viewable by authorized users. This issue is patched in the 3.1.1 stable and 3.2.0.beta2 versions of Discourse. There is no workaround for this issue apart from upgrading to the fixed version.
Which versions are affected by CVE-2023-43814?
1 open source package ship an affected version, including discourse. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
discourse Bitnami | All versions to 3.1.1 | None |
Products include Discourse Discourse.
How do I fix CVE-2023-43814?
No fix has been published for CVE-2023-43814 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2023-43814 being exploited?
There is no known exploitation of CVE-2023-43814 in the wild and no public exploit code.
Other vulnerabilities in Discourse Discourse
- CVE-2021-41163 RCE via malicious SNS subscription payload
- CVE-2022-36066 Discourse vulnerable to RCE via admins uploading maliciously zipped file
- CVE-2022-39356 Discourse user account takeover via email and invite link
- CVE-2023-22468 Discourse vulnerable to Cross-site Scripting in local oneboxes
- CVE-2026-27934 Discourse leaks private topic title and post excerpt via user action API endpoint
Sources
Also known as BIT-discourse-2023-43814, GHSA-3x57-846g-7qcw.