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Mautic's Predictable Page Indexing Might Lead to Sensitive Data Exposure

Moderate severity GitHub Reviewed Published May 28, 2025 in mautic/mautic • Updated May 28, 2025

Package

composer mautic/core (Composer)

Affected versions

>= 4.0.0, < 4.4.16
>= 5.0.0-alpha, < 5.2.6
>= 6.0.0-alpha, < 6.0.2

Patched versions

4.4.16
5.2.6
6.0.2

Description

Summary

This advisory addresses a security vulnerability in Mautic where unpublished page previews could be accessed by unauthenticated users and potentially indexed by search engines. This could lead to the unintended disclosure of draft content or sensitive information.

Unauthorized Access to Unpublished Page Previews: The page preview functionality for unpublished content, accessible via predictable URLs (e.g., /page/preview/1, /page/preview/2), lacked proper authorization checks. This allowed any unauthenticated user to view content that was not yet intended for public release, and allowed search engines to index these private preview URLs, making the content publicly discoverable.

Mitigation

Mautic has patched this vulnerability by enforcing proper permission checks on preview pages. Users should upgrade to the patched version of Mautic or later.

References

@RCheesley RCheesley published to mautic/mautic May 28, 2025
Published by the National Vulnerability Database May 28, 2025
Published to the GitHub Advisory Database May 28, 2025
Reviewed May 28, 2025
Last updated May 28, 2025

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(25th percentile)

Weaknesses

CVE ID

CVE-2025-5257

GHSA ID

GHSA-cqx4-9vqf-q3m8

Source code

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