What is CVE-2026-55409?

CVE-2026-55409 is a high-severity vulnerability in Filamentphp Filament, classified under Cross-site Scripting. CVSS score: 7.6/10. Published 2026-06-22.

How severe is CVE-2026-55409?

High severity. CVSS v3 base score is 7.6 out of 10.

XSS in Filamentphp Filament

CVE-2026-55409

Filament is a collection of full-stack components for accelerated Laravel development. From 3.0.0 until 3.3.53, a disabled RichEditor field rendered its raw state without sanitizing HTML. Where the data stored in this field's state isn't s…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N.

Affected products

Filamentphp Filament — versions >= 3.0.0, < 3.3.53

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-55409?: CVE-2026-55409 is a high-severity vulnerability in Filamentphp Filament, classified under Cross-site Scripting. CVSS score: 7.6/10. Published 2026-06-22.
How severe is CVE-2026-55409?: High severity. CVSS v3 base score is 7.6 out of 10.