CVE-2024-27090Network attack vector

Unauthenticated data disclosure via unchecked embed permissions

Published Jul 10, 2024 · Updated Aug 2, 2024

Information disclosure in Decidim before 0.27.6 allows remote attackers to access private resources through embed endpoints. Widget controllers locate resources by attacker-supplied slugs without enforcing publication, privacy, tenant, moderation, or withdrawal checks before rendering embed views. No authentication is required, but the resource slug or URL must be inferred; exposure is limited to data rendered by an embeddable resource.

CVSS severity5.3
Medium
EPSS probability0.49%
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 Decidim before 0.27.6 allows remote attackers to access private resources through embed endpoints. Widget controllers locate resources by attacker-supplied slugs without enforcing publication, privacy, tenant, moderation, or withdrawal checks before rendering embed views. No authentication is required, but the resource slug or URL must be inferred; exposure is limited to data rendered by an embeddable resource.

The record

CVE
CVE-2024-27090
Published
Jul 10, 2024
Updated
Aug 2, 2024
Vendor
Decidim
Product
Decidim
Classifications
CWE-200, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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 <0.27.6
  2. Affected versionversion=< 0.27.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Decidim · Decidimversion=0 <0.27.6; version=< 0.27.6

Published CVSS scores

5.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1190Exploit Public-Facing Application

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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