Vulnerability · Published May 29, 2026 · Assigned by Mautic
CVE-2026-9557
Medium 6.4
In plain English
A medium-severity server-side request forgery in mautic/core. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
A Server-Side Request Forgery (SSRF) vulnerability exists in Mautic's Focus component. Due to insufficient validation of user-supplied URLs, an authenticated user can trigger outbound HTTP requests from the hosting server, enabling internal network reconnaissance or forcing requests to arbitrary internal or external destinations.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | mautic/core | no fix listed | GHSA-jmv8-8j9j-rcpc |
| Packagist | mautic/core | 5.2.11 | GHSA-jmv8-8j9j-rcpc |
| Packagist | mautic/core | 6.0.9 | GHSA-jmv8-8j9j-rcpc |
| Packagist | mautic/core | 7.1.2 | GHSA-jmv8-8j9j-rcpc |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| mautic/core | 4.0.0 – before 4.4.205.0.0 – before 5.2.116.0.0 – before 6.0.97.0.0 – before 7.1.2 |
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N