CVE-2025-24972Network attack vector

Unauthorized group-chat membership via unchecked recipient preference

Published Mar 26, 2025 · Updated Mar 26, 2025

Missing authorization in Discourse stable before 3.3.4 and beta before 3.4.0.beta5 allows remote authenticated users to add others to group chats. The group direct-message creation path inserted chat-channel memberships without enforcing each recipient's disabled direct-message preference. A logged-in user able to create a group direct message can override another user's messaging choice, although disabling chat blocks new group-chat membership.

CVSS severity4.3
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Discourse stable before 3.3.4 and beta before 3.4.0.beta5 allows remote authenticated users to add others to group chats. The group direct-message creation path inserted chat-channel memberships without enforcing each recipient's disabled direct-message preference. A logged-in user able to create a group direct message can override another user's messaging choice, although disabling chat blocks new group-chat membership.

The record

CVE
CVE-2025-24972
Published
Mar 26, 2025
Updated
Mar 26, 2025
Vendor
Discourse
Product
Discourse
Classifications
CWE-862
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 26, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.3.4
  2. Affected versionversion=>= 3.4.0.beta1, < 3.4.0.beta5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Discourse · Discourseversion=< 3.3.4; version=>= 3.4.0.beta1, < 3.4.0.beta5

Published CVSS scores

4.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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