GHSA-3ggv-qwcp-j6xg CVE-2025-9824
Mautic Vulnerable to User Enumeration via Response Timing
- Severity
- 5.9 / 10
- Medium · CVSS 3.1
- Exploit chance (EPSS)
- 0.28%
- Chance of exploitation in the next 30 days. Higher than 20.88% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-204 Observable Response Discrepancy
- Fix
4.4.17- Upgrade mautic/core to this version or later
Description
Impact
The attacker can validate if a user exists by checking the time login returns. This timing difference can be used to enumerate valid usernames, after which an attacker could attempt brute force attacks.
Patches
This vulnerability has been patched, implementing a timing-safe form login authenticator that ensures consistent response times regardless of whether a user exists or not.
Technical Details
The vulnerability was caused by different response times when:
- A valid username was provided (password hashing occurred)
- An invalid username was provided (no password hashing occurred)
The fix introduces a TimingSafeFormLoginAuthenticator that performs a dummy password hash verification even for non-existent users, ensuring consistent timing.
Workarounds
No workarounds are available. Users should upgrade to the patched version.
References
Affected versions
Packagist
| Package | Vulnerable | Fixed in |
|---|---|---|
| mautic/core | >= 4.4.0, < 4.4.17 |
4.4.17 |
| mautic/core | >= 5.0.0-alpha, < 5.2.8 |
5.2.8 |
| mautic/core | >= 6.0.0-alpha, < 6.0.5 |
6.0.5 |
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 → 4.4.17
- composer
composer require mautic/core:^4.4.17
Severity breakdown
CVSS 3.1 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Weakness
CWE-204: Observable Response Discrepancy
The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.
How to prevent it
- 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.
- Implementation: Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or optimize their original attack, thereby increasing their chances of success. If errors must be captured in some detail, record them in log messages, but consider what could occur if the log messages can be viewed by attackers. Highly sensitive information such as passwords should never be saved to log files. Avoid inconsistent messaging that might accidentally tip off an attacker about internal state, such as whether a user account exists or not.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why 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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