CVE-2026-55409 — HIGH (7.6)

Vulnerability Description

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 sanitized already when the form state was filled, an attacker could plant malicious HTML or JavaScript and achieve XSS that executes for users who view the form. This vulnerability is fixed in 3.3.53.

CVSS Score

7.6

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

HIGH

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-79

References

https://github.com/filamentphp/filament/security/advisories/GHSA-m9cv-24rx-8mv7

FAQ

What is CVE-2026-55409?

CVE-2026-55409 is a vulnerability with a CVSS score of 7.6 (HIGH). 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 da...

How severe is CVE-2026-55409?

CVE-2026-55409 has been rated HIGH with a CVSS base score of 7.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-55409?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.