SB2025120311 - Multiple vulnerabilities in Mautic

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2025120311

SB2025120311 - Multiple vulnerabilities in Mautic

Published: December 3, 2025 Updated: May 25, 2026

Security Bulletin ID SB2025120311
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 6
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 67% Low 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 6 vulnerabilities.


1) Arbitrary file upload (CVE-ID: CVE-2025-13827)

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload within the GrapesJS Builder. A remote user can upload a malicious file and execute it on the server.


2) Improper access control (CVE-ID: CVE-2025-13828)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote user can install and uninstall composer packages to gain elevated privileges on the system.


3) Cross-site scripting (CVE-ID: CVE-2025-9823)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to execute arbitrary JavaScript in the context of another user's session.

The vulnerability exists due to cross-site scripting in the /s/ajax?action=lead:addLeadTags endpoint when reflecting user-supplied input in the "Tags" input field. A remote attacker can send a specially crafted request to execute arbitrary JavaScript in the context of another user's session.


4) Unverified Ownership (CVE-ID: CVE-2025-9822)

CWE-ID: CWE-283 - Unverified Ownership

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to disclose sensitive information.

The vulnerability exists due to unverified ownership in the elfinder configuration handling when changing application configuration. A remote privileged user can modify the configuration to disclose sensitive information.

An administrator can extract secrets such as database credentials that are not normally available.


5) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2025-9821)

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to interact with internal services and disclose partial response data.

The vulnerability exists due to server-side request forgery (SSRF) in the webhook function when sending webhooks to an unvalidated destination. A remote privileged user can configure a webhook destination to access internal services and disclose partial response data.

If the user can view webhook logs, partial request responses are disclosed.


6) Observable Response Discrepancy (CVE-ID: CVE-2025-9824)

CWE-ID: CWE-204 - Observable Response Discrepancy

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to enumerate valid usernames.

The vulnerability exists due to observable response discrepancy in the form login authenticator when handling login requests. A remote attacker can measure login response times to enumerate valid usernames.

This timing difference occurs because password hashing is performed for existing usernames but not for non-existent usernames.


Remediation

Install update from vendor's website.

References