What is CVE-2025-32376?

CVE-2025-32376 is a medium-severity vulnerability in Discourse, classified under Improper Access Control. CVSS score: 4.3/10. Published 2025-04-30.

How severe is CVE-2025-32376?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Discourse

CVE-2025-32376

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.

EPSS: 0.002 (13.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Discourse — versions 1.7.0, 1.2.0, 2.4.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2025-32376?: CVE-2025-32376 is a medium-severity vulnerability in Discourse, classified under Improper Access Control. CVSS score: 4.3/10. Published 2025-04-30.
How severe is CVE-2025-32376?: Medium severity. CVSS v3 base score is 4.3 out of 10.