What is CVE-2026-9557?

CVE-2026-9557 is a medium-severity vulnerability, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.4/10. Published 2026-05-29.

How severe is CVE-2026-9557?

Medium severity. CVSS v3 base score is 6.4 out of 10.

CVE-2026-9557

CVE-2026-9557

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 interna…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.000 (8.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

security@mautic.org

Frequently asked questions

What is CVE-2026-9557?: CVE-2026-9557 is a medium-severity vulnerability, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.4/10. Published 2026-05-29.
How severe is CVE-2026-9557?: Medium severity. CVSS v3 base score is 6.4 out of 10.