CVE-2025-13828 Mautic user without privileged access to the Marketplace can install and uninstall composer packages
Low-privileged users can install malicious packages via Composer to gain higher privileges, bypassing authorization checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-13828?
CVE-2025-13828 is a critical missing authorization vulnerability in Mautic, published on 2 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
SummaryA non privileged user can install and remove arbitrary packages via composer for a composer based installed, even if the flag in update settings for enable composer based update is unticked.
ImpactA low-privileged user of the platform can install malicious code to obtain higher privileges.
Weakness: CWE-862
Which versions are affected by CVE-2025-13828?
6 open source packages ship an affected version, including mautic/core.
| Package | Affected | Fixed in |
|---|---|---|
mautic/core Packagist | From 4.0.0 | 4.4.18 |
mautic/core Packagist | From 4.0.0 | 4.4.18 |
mautic/core Packagist | From 5.0.0 | 5.2.9 |
mautic/core Packagist | From 5.0.0 | 5.2.9 |
mautic/core Packagist | From 6.0.0 | 6.0.7 |
mautic/core Packagist | From 6.0.0 | 6.0.7 |
How do I fix CVE-2025-13828?
Upgrade mautic/core to a fixed version for your release line: 4.4.18, 5.2.9 or 6.0.7.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-13828 being exploited?
There is no known exploitation of CVE-2025-13828 in the wild and no public exploit code.
Sources
Also known as GHSA-3fq7-c5m8-g86x.