CVE-2025-32376

Discourse DM limits aren’t always properly enforced

MEDIUM

4.3

CVSS Score

Published: April 30, 2025 at 02:55 PM UTC

Updated: June 17, 2026 at 09:11 AM UTC

1 product affected across 1 vendorDiscourse

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Severity

MEDIUM4.3

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Discourse · Discourse

95%

v < 3.4.3v < 3.5.0.beta31.1.0 beta1 1.1.0 beta2 1.1.0 beta3 1.1.0 beta4 1.1.0 beta5 1.1.0 beta6 1.1.0 beta6b 1.1.0 beta7 1.1.0 beta8 1.2.0 beta1 1.2.0 beta2 1.2.0 beta3 1.2.0 beta4 1.2.0 beta5 1.2.0 beta6 1.2.0 beta7 1.2.0 beta8 1.2.0 beta9 1.3.0 beta1 1.3.0 beta10 1.3.0 beta11 1.3.0 beta2 1.3.0 beta3 1.3.0 beta4 1.3.0 beta5 1.3.0 beta6 1.3.0 beta7 1.3.0 beta8 1.3.0 beta9 1.4.0 beta1 1.4.0 beta10 1.4.0 beta11 1.4.0 beta12 1.4.0 beta2 1.4.0 beta3 1.4.0 beta4 1.4.0 beta5 1.4.0 beta6 1.4.0 beta7 1.4.0 beta8 1.4.0 beta9 1.5.0 beta1 1.5.0 beta10 1.5.0 beta11 1.5.0 beta12 1.5.0 beta13 1.5.0 beta13b 1.5.0 beta14 1.5.0 beta2 1.5.0 beta3 1.5.0 beta4 1.5.0 beta5 1.5.0 beta6 1.5.0 beta7 1.5.0 beta8 1.5.0 beta9 1.6.0 beta1 1.6.0 beta10 1.6.0 beta11 1.6.0 beta12 1.6.0 beta2 1.6.0 beta3 1.6.0 beta4 1.6.0 beta5 1.6.0 beta6 1.6.0 beta7 1.6.0 beta8 1.6.0 beta9 1.7.0 beta1 1.7.0 beta10 1.7.0 beta11 1.7.0 beta2 1.7.0 beta3 1.7.0 beta4 1.7.0 beta5 1.7.0 beta6 1.7.0 beta7 1.7.0 beta8 1.7.0 beta9 1.8.0 beta1 1.8.0 beta10 1.8.0 beta11 1.8.0 beta12 1.8.0 beta13 1.8.0 beta2 1.8.0 beta3 1.8.0 beta4 1.8.0 beta5 1.8.0 beta6 1.8.0 beta7 1.8.0 beta8 1.8.0 beta9 1.9.0 beta1 1.9.0 beta10 1.9.0 beta11 1.9.0 beta12 1.9.0 beta13 1.9.0 beta14 1.9.0 beta15 1.9.0 beta16 1.9.0 beta17 1.9.0 beta2 1.9.0 beta3 1.9.0 beta4 1.9.0 beta5 1.9.0 beta6 1.9.0 beta7 1.9.0 beta8 1.9.0 beta9 2.0.0 beta1 2.0.0 beta10 2.0.0 beta2 2.0.0 beta3 2.0.0 beta4 2.0.0 beta5 2.0.0 beta6 2.0.0 beta7 2.0.0 beta8 2.0.0 beta9 2.1.0 beta1 2.1.0 beta2 2.1.0 beta3 2.1.0 beta4 2.1.0 beta5 2.1.0 beta6 2.2.0 beta1 2.2.0 beta10 2.2.0 beta2 2.2.0 beta3 2.2.0 beta4 2.2.0 beta5 2.2.0 beta6 2.2.0 beta7 2.2.0 beta8 2.2.0 beta9 2.3.0 beta1 2.3.0 beta10 2.3.0 beta11 2.3.0 beta2 2.3.0 beta3 2.3.0 beta4 2.3.0 beta5 2.3.0 beta6 2.3.0 beta7 2.3.0 beta8 2.3.0 beta9 2.4.0 beta1 2.4.0 beta10 2.4.0 beta11 2.4.0 beta2 2.4.0 beta3 2.4.0 beta4 2.4.0 beta5 2.4.0 beta6 2.4.0 beta7 2.4.0 beta8 2.4.0 beta9 2.5.0 beta1 2.5.0 beta2 2.5.0 beta3 2.5.0 beta4 2.5.0 beta5 2.5.0 beta6 2.5.0 beta7 2.6.0 beta1 2.6.0 beta2 2.6.0 beta3 2.6.0 beta4 2.6.0 beta5 2.6.0 beta6 2.7.0 beta1 2.7.0 beta2 2.7.0 beta3 2.7.0 beta4 2.7.0 beta5 2.7.0 beta6 2.7.0 beta7 2.7.0 beta8 2.7.0 beta9 2.8.0 beta1 2.8.0 beta10 2.8.0 beta11 2.8.0 beta2 2.8.0 beta3 2.8.0 beta4 2.8.0 beta5 2.8.0 beta6 2.8.0 beta7 2.8.0 beta8 2.8.0 beta9 2.9.0 beta1 2.9.0 beta10 2.9.0 beta11 2.9.0 beta12 2.9.0 beta13 2.9.0 beta14 2.9.0 beta2 2.9.0 beta3 2.9.0 beta4 2.9.0 beta5 2.9.0 beta6 2.9.0 beta7 2.9.0 beta8 2.9.0 beta9 3.0.0 beta15 3.0.0 beta16 3.1.0 beta1 3.1.0 beta2 3.1.0 beta3 3.1.0 beta4 3.1.0 beta5 3.1.0 beta6 3.1.0 beta7 3.1.0 beta8 3.2.0 3.2.0 beta1 3.2.0 beta2 3.2.0 beta3 3.2.0 beta4 3.3.0 beta1 3.3.0 beta2 3.3.0 beta3 3.3.0 beta4 3.3.0 beta5 3.3.0 beta6 3.4.0 beta1 3.4.0 beta2 3.4.0 beta3 3.4.0 beta4 3.5.0 beta1 3.5.0 beta2

Affected range stops below 3.4.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.5.0.beta3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCPatch

Source: [email protected]

https://github.com/discourse/discourse/commit/21a7f3162221c393f9bb13721451aa7f237d881a

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://github.com/discourse/discourse/security/advisories/GHSA-mqqq-h2x3-46fr

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-284NVD-CWE-noinfo

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