Live Vulnerability Intelligence
Threat Database
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Threat Entry
Updated 2026-10-30
Formidable Forms - Security Vulnerability (CVE-2026-89435)
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…
PLUGIN
Formidable Forms
CVE-2026-89435
Risk Score
Threat Entry
Updated 2026-09-16
Formidable Forms - Security Vulnerability (CVE-2026-19857)
The Formidable Forms WordPress plugin before 6.35 does not prevent a request-derived value from reaching the WordPress shortcode parser when it substitutes a supported token into a form's custom HTML, allowing unauthenticated visitors to have arbitrary shortcodes, with attacker-chosen attributes, executed server-side on any page displaying an affected form.
PLUGIN
Formidable Forms
CVE-2026-19857
Risk Score
Threat Entry
Updated 2026-09-17
Formidable Forms - Security Vulnerability (CVE-2026-85641)
The Formidable Forms WordPress plugin before 6.35 does not restrict who can set the identifier recording which user last edited a form entry, and relies on that identifier when deciding whether to strip HTML from stored entry values, allowing unauthenticated visitors to have markup rendered in the admin entry view that would otherwise be removed, and to attribute their submission to an administrator who never made it.
PLUGIN
Formidable Forms
CVE-2026-85641
Risk Score
Threat Entry
Updated 2026-08-26
Formidable Forms - Cross-Site Scripting (XSS) (CVE-2026-18331)
The Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'frm_user_id' parameter in all versions up to, and including, 6.33.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. By forging frm_user_id to match an administrator's user ID — discoverable via the public WordPress REST API — an unauthenticated attacker causes wp_kses_post()…
PLUGIN
Formidable Forms
CVE-2026-18331
Risk Score
Threat Entry
Updated 2026-08-26
Formidable Forms - Security Vulnerability (CVE-2026-11361)
The Formidable Forms WordPress plugin before 6.32.1 does not properly validate the status of a PayPal subscription payment before marking it complete, allowing unauthenticated users to bypass payment and trigger paid form actions — such as digital content access, license delivery, and membership activation — without being charged.
PLUGIN
Formidable Forms
CVE-2026-11361
Risk Score
Threat Entry
Updated 2026-06-17
Formidable Forms - Security Vulnerability (CVE-2026-2890)
The Formidable Forms plugin for WordPress is vulnerable to a payment integrity bypass in all versions up to, and including, 6.28. This is due to the Stripe Link return handler (`handle_one_time_stripe_link_return_url`) marking payment records as complete based solely on the Stripe PaymentIntent status without comparing the intent's charged amount against the expected payment amount, and the `verify_intent()` function validating only client secret ownership without binding intents to specific forms or actions. This makes it possible for unauthenticated attackers to reuse a PaymentIntent from a completed low-value payment to mark a…
PLUGIN
Formidable Forms
CVE-2026-2890
Risk Score
Threat Entry
Updated 2026-06-17
Formidable Forms - Broken Access Control (CVE-2026-2888)
The Formidable Forms plugin for WordPress is vulnerable to an authorization bypass through user-controlled key in all versions up to, and including, 6.28. This is due to the `frm_strp_amount` AJAX handler (`update_intent_ajax`) overwriting the global `$_POST` data with attacker-controlled JSON input and then using those values to recalculate payment amounts via field shortcode resolution in `generate_false_entry()`. The handler relies on a nonce that is publicly exposed in the page's JavaScript (`frm_stripe_vars.nonce`), which provides CSRF protection but not authorization. This makes it possible for unauthenticated attackers to manipulate PaymentIntent amounts before…
PLUGIN
Formidable Forms
CVE-2026-2888
Risk Score
Threat Entry
Updated 2026-06-17
Formidable Forms - Broken Access Control (CVE-2022-45806)
Missing Authorization vulnerability in Strategy11 Form Builder Team Formidable Forms allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Formidable Forms: from n/a through 5.5.4.
PLUGIN
Formidable Forms
CVE-2022-45806
Risk Score
Threat Entry
Updated 2026-06-17
Formidable Forms - Cross-Site Scripting (XSS) (CVE-2024-11188)
The Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder plugin for WordPress is vulnerable to POST-Based Reflected Cross-Site Scripting via the Custom HTML Form parameters in all versions up to, and including, 6.16.1.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
PLUGIN
Formidable Forms
CVE-2024-11188
Risk Score
Threat Entry
Updated 2026-06-17
Formidable Forms - Cross-Site Scripting (XSS) (CVE-2024-9768)
The Formidable Forms WordPress plugin before 6.14.1 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).
PLUGIN
Formidable Forms
CVE-2024-9768
Risk Score
Threat Entry
Updated 2026-06-17
Formidable Forms - Cross-Site Scripting (XSS) (CVE-2024-6725)
The Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘html’ parameter in all versions up to, and including, 6.11.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with form editing permissions and Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
PLUGIN
Formidable Forms
CVE-2024-6725
Risk Score
Threat Entry
Updated 2026-06-17
Formidable Forms - Remote Code Execution (CVE-2024-23522)
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Strategy11 Form Builder Team Formidable Forms allows Code Injection.This issue affects Formidable Forms: from n/a through 6.7.
PLUGIN
Formidable Forms
CVE-2024-23522
Risk Score
Threat Entry
Updated 2026-06-17
Formidable Forms - Cross-Site Request Forgery (CSRF) (CVE-2024-0660)
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.
PLUGIN
Formidable Forms
CVE-2024-0660
Risk Score
Threat Entry
Updated 2026-06-17
Formidable Forms - PHP Object Injection (CVE-2023-1405)
The Formidable Forms WordPress plugin before 6.2 unserializes user input, which could allow anonymous users to perform PHP Object Injection when a suitable gadget is present.
PLUGIN
Formidable Forms
CVE-2023-1405
Risk Score
Threat Entry
Updated 2026-06-17
Formidable Forms - Cross-Site Scripting (XSS) (CVE-2023-6842)
The Formidable Forms – Contact Form, Survey, Quiz, Payment, Calculator Form & Custom Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the name field label and description field label parameter in all versions up to 6.7 (inclusive) due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. By default, this only affects multi-site installations and installations where unfiltered_html has been disabled.…
PLUGIN
Formidable Forms
CVE-2023-6842
Risk Score
Threat Entry
Updated 2026-06-17
Formidable Forms - Security Vulnerability (CVE-2023-6830)
The Formidable Forms plugin for WordPress is vulnerable to HTML injection in versions up to, and including, 6.7. This vulnerability allows unauthenticated users to inject arbitrary HTML code into form fields. When the form data is viewed by an administrator in the Entries View Page, the injected HTML code is rendered, potentially leading to admin area defacement or redirection to malicious websites. CVE-2024-23522 appears to be a duplicate of this issue.
PLUGIN
Formidable Forms
CVE-2023-6830
Risk Score
Threat Entry
Updated 2026-06-17
Formidable Forms - Remote Code Execution (CVE-2023-2877)
The Formidable Forms WordPress plugin before 6.3.1 does not adequately authorize the user or validate the plugin URL in its functionality for installing add-ons. This allows a user with a role as low as Subscriber to install and activate arbitrary plugins of arbitrary versions from the WordPress.org plugin repository onto the site, leading to Remote Code Execution.
PLUGIN
Formidable Forms
CVE-2023-2877
Risk Score
Threat Entry
Updated 2026-06-17
Formidable Forms - Security Vulnerability (CVE-2023-0816)
The Formidable Forms WordPress plugin before 6.1 uses several potentially untrusted headers to determine the IP address of the client, leading to IP Address spoofing and bypass of anti-spam protections.
PLUGIN
Formidable Forms
CVE-2023-0816
Risk Score