CVE-2025-47288Network attack vector

Private group-member disclosure via missing authorization checks

Published May 29, 2025 · Updated May 30, 2025

Information disclosure in Discourse Policy Plugin before 0.1.1 allows remote authenticated users to view private group members. The accepted and not_accepted controller actions return policy user lists without checking Guardian.can_see_groups_members?, and the post serializer exposes the same lists for public policies. A logged-in non-group member must access a public topic linked to a private group; only group-membership confidentiality is affected.

CVSS severity3.5
Low
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Discourse Policy Plugin before 0.1.1 allows remote authenticated users to view private group members. The accepted and not_accepted controller actions return policy user lists without checking Guardian.can_see_groups_members?, and the post serializer exposes the same lists for public policies. A logged-in non-group member must access a public topic linked to a private group; only group-membership confidentiality is affected.

The record

CVE
CVE-2025-47288
Published
May 29, 2025
Updated
May 30, 2025
Vendor
Discourse
Product
Discourse Policy Plugin
Classifications
CWE-200, T1087
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 29, 2025CVE publishedPublication date reported by the CVE source.
  2. May 30, 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=< 0.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Discourse · Discourse Policy Pluginversion=< 0.1.1

Published CVSS scores

3.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1087Account Discovery

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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