Medium severity · published Jun 13, 2023
CVE-2023-34250
Discourse is an open source discussion platform
5.3
CVSS
0.4%
EPSS
No
On KEV
Description
Discourse is an open source discussion platform. Prior to version 3.0.4 of the `stable` branch and version 3.1.0.beta5 of the `beta` and `tests-passed` branches, an attacker could use the new topics dismissal endpoint to reveal the number of topics recently created (but not the actual content thereof) in categories they didn't have access to. This issue is patched in version 3.0.4 of the `stable` branch and version 3.1.0.beta5 of the `beta` and `tests-passed` branches. There are no known workarounds.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
Discourse · Discourse
before 3.0.4; 3.1.0; 3.1.0; 3.1.0; 3.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-34250
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-34250
Vendor Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-q8m5-wmjr-3ppg
More from Discourse
9.9
CVE-2025-68662
FinalDestination hostname matching allows SSRF protection bypass
9.8
CVE-2025-53102
Discourse's WebAuthn challenge isn't cleared from user session after authentication
9.8
CVE-2025-48877
Discourse is an open-source discussion platform
9.8
CVE-2023-47121
Discourse is an open source platform for community discussion
9.8
CVE-2021-41163
Discourse is an open source platform for community discussion