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4 vulnerabilities found for Formidable Forms – Contact Form, Survey, Quiz, Payment, Calculator Form & Custom Form Builder by strategy11team
CVE-2026-89435 (GCVE-0-2026-89435)
Vulnerability from nvd – Published: 2026-10-30 06:47 – Updated: 2026-10-30 18:09
VLAI
EPSS
VEX
Title
Formidable Forms <= 6.35 - Authenticated (Subscriber+) Arbitrary Plugin Installation via 'file_url' Parameter
Summary
The Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More plugin for WordPress is vulnerable to Arbitrary Plugin Installation in all versions up to, and including, 6.35 via the 'file_url' parameter parameter. This is due to insufficient URL prefix validation in validate_url_is_in_s3_bucket() and a permission callback that relies solely on a shared token obtainable by any user with the delegable frm_view_forms capability, without checking install_plugins or activate_plugins capabilities. This makes it possible for authenticated attackers, with subscriber-level access and above, to install arbitrary plugins on the server. Exploitation additionally requires that the site is free-only (Formidable Pro is NOT installed).
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 17:32 UTC
CWE
- CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| strategy11team | Formidable Forms – Contact Form, Survey, Quiz, Payment, Calculator Form & Custom Form Builder |
Affected:
0 , ≤ 6.35
(semver)
|
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
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}
],
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}
],
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}
}
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},
"references": [
{
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},
{
"url": "https://plugins.trac.wordpress.org/browser/formidable/tags/6.35/classes/controllers/FrmAddonsController.php#L1514"
},
{
"url": "https://plugins.trac.wordpress.org/browser/formidable/tags/6.35/classes/controllers/FrmAddonsController.php#L1489"
},
{
"url": "https://plugins.trac.wordpress.org/browser/formidable/tags/6.35/classes/helpers/FrmAppHelper.php#L4934"
},
{
"url": "https://plugins.trac.wordpress.org/browser/formidable/tags/6.35/classes/controllers/FrmAddonsController.php#L1459"
},
{
"url": "https://plugins.trac.wordpress.org/browser/formidable/tags/6.35/classes/controllers/FrmAppController.php#L1167"
},
{
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},
{
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}
],
"timeline": [
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"value": "Vendor Notified"
},
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"value": "Disclosed"
}
],
"title": "Formidable Forms \u003c= 6.35 - Authenticated (Subscriber+) Arbitrary Plugin Installation via \u0027file_url\u0027 Parameter"
}
},
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"dataType": "CVE_RECORD",
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CVE-2024-0660 (GCVE-0-2024-0660)
Vulnerability from nvd – Published: 2024-02-05 21:21 – Updated: 2026-04-08 17:18
VLAI
EPSS
VEX
Title
Formidable Forms <= 6.7.2 - Cross-Site Request Forgery to Stored Cross-Site Scripting
Summary
The Formidable Forms – Contact Form, Survey, Quiz, Payment, Calculator Form & Custom Form Builder plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.7.2. This is due to missing or incorrect nonce validation on the update_settings function. This makes it possible for unauthenticated attackers to change form settings and add malicious JavaScript via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-06 18:26 UTC
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| strategy11team | Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder |
Affected:
0 , ≤ 6.7.2
(semver)
|
{
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"id": "CVE-2024-0660",
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"Technical Impact": "partial"
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],
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"timestamp": "2024-02-06T18:26:04.302929Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
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"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
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"providerMetadata": {
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"tags": [
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},
{
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"x_transferred"
],
"url": "https://plugins.trac.wordpress.org/changeset/3026901/formidable/tags/6.8/classes/controllers/FrmFormsController.php"
}
],
"title": "CVE Program Container"
}
],
"cna": {
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}
],
"metrics": [
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}
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"providerMetadata": {
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"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
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"references": [
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},
{
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}
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"timeline": [
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}
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CVE-2026-89435 (GCVE-0-2026-89435)
Vulnerability from cvelistv5 – Published: 2026-10-30 06:47 – Updated: 2026-10-30 18:09
VLAI
EPSS
VEX
Title
Formidable Forms <= 6.35 - Authenticated (Subscriber+) Arbitrary Plugin Installation via 'file_url' Parameter
Summary
The Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More plugin for WordPress is vulnerable to Arbitrary Plugin Installation in all versions up to, and including, 6.35 via the 'file_url' parameter parameter. This is due to insufficient URL prefix validation in validate_url_is_in_s3_bucket() and a permission callback that relies solely on a shared token obtainable by any user with the delegable frm_view_forms capability, without checking install_plugins or activate_plugins capabilities. This makes it possible for authenticated attackers, with subscriber-level access and above, to install arbitrary plugins on the server. Exploitation additionally requires that the site is free-only (Formidable Pro is NOT installed).
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 17:32 UTC
CWE
- CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| strategy11team | Formidable Forms – Contact Form, Survey, Quiz, Payment, Calculator Form & Custom Form Builder |
Affected:
0 , ≤ 6.35
(semver)
|
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"timestamp": "2026-10-30T17:32:42.670504Z",
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},
"title": "CISA ADP Vulnrichment"
}
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}
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}
],
"metrics": [
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},
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},
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},
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},
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},
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},
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}
],
"timeline": [
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"time": "2026-09-11T19:53:34.000Z",
"value": "Vendor Notified"
},
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"lang": "en",
"time": "2026-10-29T18:46:13.000Z",
"value": "Disclosed"
}
],
"title": "Formidable Forms \u003c= 6.35 - Authenticated (Subscriber+) Arbitrary Plugin Installation via \u0027file_url\u0027 Parameter"
}
},
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CVE-2024-0660 (GCVE-0-2024-0660)
Vulnerability from cvelistv5 – Published: 2024-02-05 21:21 – Updated: 2026-04-08 17:18
VLAI
EPSS
VEX
Title
Formidable Forms <= 6.7.2 - Cross-Site Request Forgery to Stored Cross-Site Scripting
Summary
The Formidable Forms – Contact Form, Survey, Quiz, Payment, Calculator Form & Custom Form Builder plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.7.2. This is due to missing or incorrect nonce validation on the update_settings function. This makes it possible for unauthenticated attackers to change form settings and add malicious JavaScript via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-06 18:26 UTC
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| strategy11team | Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder |
Affected:
0 , ≤ 6.7.2
(semver)
|
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},
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"x_transferred"
],
"url": "https://plugins.trac.wordpress.org/changeset/3026901/formidable/tags/6.8/classes/controllers/FrmFormsController.php"
}
],
"title": "CVE Program Container"
}
],
"cna": {
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"product": "Formidable Forms \u2013 Contact Form Plugin, Survey, Quiz, Payment, Calculator Form \u0026 Custom Form Builder",
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}
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}
],
"metrics": [
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"version": "3.1"
}
}
],
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"type": "CWE"
}
]
}
],
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},
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