Discourse DM Limit Bypass in Stable 3.4.3 & Beta 3.5.0.beta3 (CVE-2025-32376)
CVE-2025-32376 Published on April 30, 2025
Discourse DM limits aren’t always properly enforced
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.
Weakness Type
What is an Authorization Vulnerability?
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVE-2025-32376 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2025-32376
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Affected Versions
discourse:- Version < 3.4.3 is affected.
- Version >= 3.5.0.beta1, < 3.5.0.beta3 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.