Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wpeverest User Registration user-registration allows Reflected XSS.This issue affects User Registration: from n/a through <= 5.1.5.
CVE-2026-5478 is a path traversal vulnerability in the Everest Forms WordPress plugin up to version 3.4.4. It allows unauthenticated attackers to read and delete arbitrary local files by injecting path traversal payloads into the old_files upload field parameter in public form submissions. This vulnerability arises because the plugin trusts attacker-controlled data and performs insecure path resolution without enforcing directory boundaries. Exploitation can lead to disclosure of sensitive files like wp-config.php, resulting in potential full site compromise, and deletion of critical files causing denial of service. The vulnerability requires the form to have a file-upload or image-upload field and disabled entry information storage. No official patch or remediation guidance is currently available.
The User Registration & Membership plugin for WordPress is vulnerable to Open Redirect in versions up to and including 5.1.4. This is due to insufficient validation of user-supplied URLs passed via the 'redirect_to_on_logout' GET parameter before redirecting users. The `redirect_to_on_logout` GET parameter is passed directly to WordPress's `wp_redirect()` function instead of the domain-restricted `wp_safe_redirect()`. While `esc_url_raw()` is applied to sanitize malformed URLs, it does not restrict the redirect destination to the local domain, allowing an attacker to craft a specially formed link that redirects users to potentially malicious external URLs after logout, which could be used to facilitate phishing attacks.
CVE-2026-1865 is a medium severity SQL Injection vulnerability in the WordPress plugin 'User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder' up to version 5.1.2. The flaw exists in the 'membership_ids[]' parameter, which is insufficiently escaped, allowing authenticated users with Subscriber-level access or higher to inject additional SQL commands. This can lead to unauthorized extraction of sensitive database information. No official patch or remediation guidance is currently confirmed.
The Everest Forms WordPress plugin up to version 3.4.3 contains a critical vulnerability (CVE-2026-3296) involving PHP Object Injection via unsafe deserialization of untrusted input from form entry metadata. An unauthenticated attacker can inject a serialized PHP object payload through any public form field, which is stored in the database and later unserialized without class restrictions when an administrator views entries. This can lead to full system compromise due to the high severity of the vulnerability.
The Everest Forms Pro WordPress plugin up to version 1.9.12 contains a critical remote code execution vulnerability due to improper handling of user input in the Calculation Addon's process_filter() function. User-submitted form field values are concatenated into PHP code and evaluated without proper escaping, allowing unauthenticated attackers to inject and execute arbitrary PHP code via the "Complex Calculation" feature. This vulnerability has a CVSS score of 9.8, indicating a critical severity level. No official patch or remediation information is currently provided.
Incorrect Privilege Assignment vulnerability in wpeverest User Registration user-registration allows Privilege Escalation.This issue affects User Registration: from n/a through <= 4.4.9.
The User Registration & Membership plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the Content Access Rules REST API endpoints in versions 5.0.1 through 5.1.4. This is due to the `check_permissions()` method only checking for `edit_posts` capability instead of an administrator-level capability. This makes it possible for authenticated attackers, with Contributor-level access and above, to list, create, modify, toggle, duplicate, and delete site-wide content restriction rules, potentially exposing restricted content or denying legitimate user access.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPEverest Everest Forms Pro allows Stored XSS.This issue affects Everest Forms Pro: from n/a through 1.9.10.
The User Registration & Membership – Custom Registration Form Builder, Custom Login Form, User Profile, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to improper privilege management in all versions up to, and including, 5.1.2. This is due to the plugin accepting a user-supplied role during membership registration without properly enforcing a server-side allowlist. This makes it possible for unauthenticated attackers to create administrator accounts by supplying a role value during membership registration.
The User Registration & Membership plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 5.1.2. This is due to incorrect authentication in the 'register_member' function. This makes it possible for unauthenticated attackers to log in a newly registered user on the site who has the 'urm_user_just_created' user meta set.
The User Registration & Membership – Custom Registration Form, Login Form, and User Profile plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.2 via the 'register_member' function, due to missing validation on the 'member_id' user controlled key. This makes it possible for unauthenticated attackers to delete arbitrary user accounts that newly registered on the site who has the 'urm_user_just_created' user meta set.
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in wpeverest Everest Forms everest-forms allows Code Injection.This issue affects Everest Forms: from n/a through <= 3.4.1.
Missing Authorization vulnerability in wpeverest User Registration user-registration allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects User Registration: from n/a through <= 4.4.9.
Missing Authorization vulnerability in wpeverest User Registration user-registration allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects User Registration: from n/a through <= 4.4.6.
The User Registration & Membership – Custom Registration Form Builder, Custom Login Form, User Profile, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 4.4.8. This is due to missing or incorrect nonce validation on the 'process_row_actions' function with the 'delete' action. This makes it possible for unauthenticated attackers to delete arbitrary post via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
The User Registration & Membership – Custom Registration Form Builder, Custom Login Form, User Profile, Content Restriction & Membership Plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple shortcode attributes in all versions up to, and including, 4.4.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
The Everest Forms (Pro) plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.9.7 via deserialization of untrusted input in the mime_content_type() function. This makes it possible for unauthenticated attackers to inject a PHP Object. This vulnerability may be exploited by unauthenticated attackers when a form is present on the site with a non-required signature form field along with an image upload field. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present. This vulnerability is only exploitable in PHP versions prior to 8.
Deserialization of Untrusted Data vulnerability in wpeverest Everest Forms - Frontend Listing everest-forms-frontend-listing allows Object Injection.This issue affects Everest Forms - Frontend Listing: from n/a through <= 1.0.5.
The User Registration & Membership plugin for WordPress is vulnerable to SQL Injection via the 's' parameter in version 4.3.0. This is due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.