CVE-2025-5257: Mautic/core Mautic's Predictable Page Indexing Might Vulnerability

Q: What is CVE-2025-5257?

CVE-2025-5257 is a security vulnerability in Mautic/core involving Mautic's Predictable Page Indexing Might Lead to Sensitive Data Exposure under CWE-284: Improper Access Control.

Q: Which Mautic/core versions are affected?

Affected versions include releases prior to 4.4.16, 5.2.6, 6.0.2 across affected packages: mautic/core.

Q: What version fixes CVE-2025-5257?

Upgrading to 4.4.16, 5.2.6, 6.0.2 (or the latest patched release for your respective branch) resolves the vulnerability.

Q: Is mautic/core affected?

Yes, mautic/core is affected in releases prior to 4.4.16, 5.2.6, 6.0.2. Upgrade your dependency to 4.4.16, 5.2.6, 6.0.2 or later.

Q: What is the CVSS score of CVE-2025-5257?

CVE-2025-5257 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.

Q: What CWE is associated with CVE-2025-5257?

CVE-2025-5257 is classified under CWE-284: Improper Access Control (The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.).

Q: How can I check Packagist dependencies for CVE-2025-5257?

Run the dependency tree command: 'inspect dependencies for mautic/core'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

MODERATE

Advisory Identifier: GHSA-cqx4-9vqf-q3m8

CVSS 6.5

CWE-284 CWE-1284

Published 2025-05-28

Advisory Summary

CVE-2025-5257 is a MODERATE (CVSS 6.5) mautic's predictable page indexing might vulnerability (CWE-284: Improper Access Control) affecting Mautic/core libraries in the Packagist ecosystem. The issue involves mautic's predictable page indexing might lead to sensitive data exposure. Remediation is available by upgrading affected packages to version 4.4.16, 5.2.6, 6.0.2.

CVE-2025-5257 at a Glance

CVE Identifier CVE-2025-5257

GHSA Identifier GHSA-cqx4-9vqf-q3m8

Severity MODERATE

CVSS v3.1 Base Score 6.5

CWE Classification CWE-284: Improper Access Control

Affected Product Mautic/core

Package Ecosystem Packagist

Published Date 2025-05-28

Last Updated 2025-05-28

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L).

Attack Vector Network (AV:N)

Attack Complexity Low (AC:L)

Privileges Required None (PR:N)

User Interaction None (UI:N)

Scope Unchanged (S:U)

Confidentiality Low (C:L)

Integrity None (I:N)

Availability Low (A:L)

How to Fix CVE-2025-5257

To remediate this vulnerability, upgrade all affected Mautic/core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

mautic/core fixed: 4.4.16

Upgrade mautic/core to 4.4.16

mautic/core fixed: 5.2.6

Upgrade mautic/core to 5.2.6

mautic/core fixed: 6.0.2

Upgrade mautic/core to 6.0.2

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

inspect dependencies for mautic/core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-5257, inspect your project dependencies for Mautic/core:

inspect dependencies for mautic/core

Analyze the terminal output to locate any version of Mautic/core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.4.16), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-284: Improper Access Control, where the product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. In Mautic/core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### 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.

CVE-2025-5257 Affected Mautic/core Versions

3 component(s)

Fixed Versions:

4.4.165.2.66.0.2

Product / Package	Ecosystem	Affected Versions	Fixed Version
mautic/core	Packagist	≥ 4.0.0 < 4.4.16	4.4.16
mautic/core	Packagist	≥ 5.0.0-alpha < 5.2.6	5.2.6
mautic/core	Packagist	≥ 6.0.0-alpha < 6.0.2	6.0.2

References

GitHub Advisory / Wiki ADVISORY

https://github.com/mautic/mautic/security/advisories/GHSA-cqx4-9vqf-q3m8

NVD — CVE-2025-5257 NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-5257

Mautic/core Source Repository REPOSITORY

https://github.com/mautic/mautic

Frequently Asked Questions

What is CVE-2025-5257?

CVE-2025-5257 is a security vulnerability in Mautic/core involving Mautic's Predictable Page Indexing Might Lead to Sensitive Data Exposure under CWE-284: Improper Access Control.

Which Mautic/core versions are affected?

Affected versions include releases prior to 4.4.16, 5.2.6, 6.0.2 across affected packages: mautic/core.

What version fixes CVE-2025-5257?

Upgrading to 4.4.16, 5.2.6, 6.0.2 (or the latest patched release for your respective branch) resolves the vulnerability.

Is mautic/core affected?

Yes, mautic/core is affected in releases prior to 4.4.16, 5.2.6, 6.0.2. Upgrade your dependency to 4.4.16, 5.2.6, 6.0.2 or later.

What is the CVSS score of CVE-2025-5257?

CVE-2025-5257 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.

What CWE is associated with CVE-2025-5257?

CVE-2025-5257 is classified under CWE-284: Improper Access Control (The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.).

How can I check Packagist dependencies for CVE-2025-5257?

Run the dependency tree command: 'inspect dependencies for mautic/core'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

Machine-readable OSV JSON OSV v1.5 Schema

Normalized schema output

View Raw JSON

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-cqx4-9vqf-q3m8",
  "modified" : "2025-05-28T20:08:01Z",
  "published" : "2025-05-28T17:38:13Z",
  "aliases" : [ "CVE-2025-5257" ],
  "summary" : "Mautic's Predictable Page Indexing Might Lead to Sensitive Data Exposure",
  "details" : "### Summary\nThis 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.\n\nUnauthorized 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.\n\n### Mitigation\nMautic has patched this vulnerability by enforcing proper permission checks on preview pages. Users should upgrade to the patched version of Mautic or later.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "mautic/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0"
      }, {
        "fixed" : "4.4.16"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "mautic/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "5.0.0-alpha"
      }, {
        "fixed" : "5.2.6"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "mautic/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.0.0-alpha"
      }, {
        "fixed" : "6.0.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/mautic/mautic/security/advisories/GHSA-cqx4-9vqf-q3m8"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-5257"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/mautic/mautic"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1284", "CWE-284" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-05-28T17:38:13Z",
    "nvd_published_at" : "2025-05-28T17:15:25Z"
  }
}

CVSS V3

6.5 MODERATE