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GHSA-cqx4-9vqf-q3m8 CVE-2025-5257

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

Medium Packagist
Severity
6.5 / 10
Medium · CVSS 3.1
Exploit chance (EPSS)
0.36%
Chance of exploitation in the next 30 days. Higher than 30.33% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-1284 Improper Validation of Specified Quantity in Input
CWE-284 Improper Access Control
Fix
4.4.16
Upgrade mautic/core to this version or later

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This advisory addresses a security vulnerability in Mautic where unpublished page previews could be accessed by unauthenticated users and potentially indexed by search engines.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Unauthorized Access to Unpublished Page Previews: The page preview functionality for unpublished content, accessible via predictable URLs (e.g., /page/preview/1, /page/preview/2), lacked proper authorization checks.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.

Affected versions

Packagist

PackageVulnerableFixed in
mautic/core
>= 4.0.0, < 4.4.16
4.4.16
mautic/core
>= 5.0.0-alpha, < 5.2.6
5.2.6
mautic/core
>= 6.0.0-alpha, < 6.0.2
6.0.2

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

mautic/core Packagist → 4.4.16

composer
composer require mautic/core:^4.4.16

Severity breakdown

CVSS 3.1 6.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

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

Weakness

CWE-1284: Improper Validation of Specified Quantity in Input

The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

How to prevent it
  • Implementation: Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does. When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue." Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.

CWE-284: Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How to prevent it
  • Architecture and Design, Operation: Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
  • Architecture and Design: Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-5hvg-w58j-545m
Mautic has Stored Cross-Site Scripting (XSS) in Project Option Selector
Medium Also affects mautic/core
GHSA-7h65-whp7-rgqf
Mautic has Stored Cross-Site Scripting (XSS) in Projects Component
High Also affects mautic/core
GHSA-2jrw-c95w-h43g
Mautic has an Authorization Bypass in API v2 Endpoints
High Also affects mautic/core
GHSA-6r9h-4h75-7q4x
Mautic vulnerable to Path Traversal via Campaign Import
Critical Also affects mautic/core
GHSA-9fx4-7cmj-47vg
Mautic has Server-Side Template Injection (SSTI) in Theme Templates
Critical Also affects mautic/core
GHSA-jmv8-8j9j-rcpc
Mautic Focus component Vulnerable to SSRF
Medium Also affects mautic/core
GHSA-fcmw-wx57-9p75
Mautic has SQL Injection in API Contact Filtering
High Also affects mautic/core
GHSA-r5j5-q42h-fc93
Mautic is Vulnerable to SQL Injection through Contact Activity API Sorting
High Also affects mautic/core
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