Medium severity · published Apr 30, 2025
CVE-2025-32376
Discourse DM limits aren’t always properly enforced
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
Discourse is an open-source discussion platform. Prior to versions 3.4.3 on the stable branch and 3.5.0.beta3 on the beta branch, the users limit for a DM can be bypassed, thus giving the ability to potentially create a DM with every user from a site in it. This issue has been patched in stable version 3.4.3 and beta version 3.5.0.beta3.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
discourse · discourse
< 3.4.3; >= 3.5.0.beta1, < 3.5.0.beta3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-32376
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-32376
Patch
https://github.com/discourse/discourse/commit/21a7f3162221c393f9bb13721451aa7f237d881a
Vendor Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-mqqq-h2x3-46fr
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