CVE-2026-55409
Filament: Disabled RichEditor field state can be used for XSS
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
7.6
Filament: Disabled RichEditor field state can be used for XSS
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.
- Record
CVE-2026-55409- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-03
EUVDEUVD-2026-38397
7.6
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.
- Record
EUVD-2026-38397- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m9cv-24rx-8mv7
7.6
Filament: Disabled RichEditor field state can be used for XSS
In Filament v3, 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.
Please note that Filament v4 and above does not use the same mechanism for rendering a disabled RichEditor so this advisory does not apply.
- Record
GHSA-m9cv-24rx-8mv7- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-03
NVD
7.6
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.
- Record
CVE-2026-55409- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-03
OSV
7.6
Filament: Disabled RichEditor field state can be used for XSS
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.
- Record
CVE-2026-55409- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-07
OSVGHSA-m9cv-24rx-8mv7
7.6
Filament: Disabled RichEditor field state can be used for XSS
In Filament v3, 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.
Please note that Filament v4 and above does not use the same mechanism for rendering a disabled RichEditor so this advisory does not apply.
- Record
GHSA-m9cv-24rx-8mv7- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-03
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
filament/formsPackagist |
3.0.0 to 3.3.52 | 3.3.53 |
filament/formsPackagist |
3.0.0 up to 3.3.53, plus listed versions v3.0.0v3.0.1v3.0.10v3.0.100v3.0.101 Show 45 moreShow lessv3.0.102v3.0.103v3.0.11v3.0.12v3.0.13v3.0.14v3.0.15v3.0.16v3.0.17v3.0.18v3.0.19v3.0.2v3.0.20v3.0.21v3.0.22v3.0.23v3.0.24v3.0.25v3.0.26v3.0.27v3.0.28v3.0.29v3.0.3v3.0.30v3.0.31v3.0.32v3.0.33v3.0.34v3.0.35v3.0.36v3.0.37v3.0.38v3.0.39v3.0.4v3.0.40v3.0.41v3.0.42v3.0.43v3.0.44v3.0.45v3.0.46v3.0.47v3.0.48v3.0.49v3.0.5 |
3.3.53 |
History
| Recorded | Changed | Sources |
|---|---|---|
| references | NVD, OSV | |
| references | CVE List, EUVD, OSV | |
| facts, references | GitHub Advisories | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-55409 is a high vulnerability (CVSS 7.6) in Filamentphp Filament, published June 17, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 28th percentile. Fixed in filament/forms 3.3.53.
References
github.com/filamentphp/filament/security/advisories/GHSA-m9cv-24rx-8mv7
github.com/filamentphp/filament/pull/20029
github.com/filamentphp/filament/releases/tag/v3.3.53
nvd.nist.gov/vuln/detail/CVE-2026-55409
github.com/advisories/GHSA-m9cv-24rx-8mv7
github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55409.json
github.com/filamentphp/filament
Left out here: 303 versions. The JSON record has them.