Skip to main content

Discourse CVE-2025-32376

MEDIUM
Improper Access Control (CWE-284)
2025-04-30 security-advisories@github.com
Authentication Bypass Discourse
4.8
CVSS 4.0 · GitHub Advisory
Share

Severity by source

GitHub Advisory PRIMARY
4.8 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
A
Scope
X

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 18:39 vuln.today
Patch released
Mar 28, 2026 - 18:39 nvd
Patch available
CVE Published
Apr 30, 2025 - 15:16 nvd
MEDIUM 4.8

DescriptionGitHub Advisory

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.

AnalysisAI

Discourse is an open-source discussion platform. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-284. 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 products include: Discourse. Version information: version 3.4.3.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

More in Discourse

View all
CVE-2025-48954 HIGH POC
8.1 Jun 25

Discourse versions prior to 3.5.0.beta6 contain a reflected cross-site scripting (XSS) vulnerability in social login fun
CVE-2022-46162 CRITICAL POC
9.8 Nov 30

discourse-bbcode is the official BBCode plugin for Discourse. Rated critical severity (CVSS 9.8), this vulnerability is

CVE-2024-47773 HIGH POC
8.2 Oct 08

Discourse is an open source platform for community discussion. Rated high severity (CVSS 8.2), this vulnerability is rem
CVE-2026-26265 HIGH POC
7.5 Feb 26

Discourse versions prior to 2025.12.2, 2026.1.1, and 2026.2.0 contain an insecure direct object reference (IDOR) in the

CVE-2021-3138 HIGH POC
7.5 Jan 14

In Discourse 2.7.0 through beta1, a rate-limit bypass leads to a bypass of the 2FA requirement for certain forms. Rated

CVE-2023-38706 MEDIUM POC
6.5 Sep 15

Discourse is an open-source discussion platform. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploi
CVE-2024-53991 MEDIUM POC
5.9 Dec 19

Discourse is an open source platform for community discussion. Rated medium severity (CVSS 5.9), this vulnerability is r
CVE-2025-48877 CRITICAL
9.8 Jun 09

Discourse versions prior to 3.4.4 (stable), 3.5.0.beta5 (beta), and 3.5.0.beta6-dev (tests-passed) contain a critical vu
CVE-2023-47121 CRITICAL
9.8 Nov 10

Discourse is an open source platform for community discussion. Rated critical severity (CVSS 9.8), this vulnerability is
CVE-2022-39355 CRITICAL
9.8 Oct 26

Discourse Patreon enables syncronization between Discourse Groups and Patreon rewards. Rated critical severity (CVSS 9.8
CVE-2021-41163 CRITICAL
9.8 Oct 20

Discourse is an open source platform for community discussion. Rated critical severity (CVSS 9.8), this vulnerability is
CVE-2026-27454 MEDIUM POC
5.3 Mar 19

Unauthorized access to hidden post revisions in Discourse through version enumeration allows unauthenticated users to by

Same weakness CWE-284 – Improper Access Control

View all
CVE-2012-4681 CRITICAL POC
9.8
CVE-2011-3544 CRITICAL POC
9.8
CVE-2012-1723 CRITICAL POC
9.8
CVE-2012-5076 CRITICAL POC
9.8
CVE-2014-3120 HIGH POC
8.1
CVE-2013-2423 LOW POC
3.7
CVE-2016-3427 CRITICAL
9.8
CVE-2025-12480 CRITICAL POC
9.1

Same technique Authentication Bypass

View all
CVE-2023-22515 CRITICAL POC
9.8
CVE-2012-4681 CRITICAL POC
9.8
CVE-2013-2465 CRITICAL POC
9.8
CVE-2011-3544 CRITICAL POC
9.8
CVE-2022-40684 CRITICAL POC
9.8
CVE-2025-61882 CRITICAL POC
9.8
CVE-2024-0012 CRITICAL POC
9.3
CVE-2023-46805 HIGH POC
8.2

Share

CVE-2025-32376 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy