plugin
59 known security issues reported for the Simple Membership WordPress plugin. Most recent disclosed Aug 5, 2026.
Running Simple Membership on your site? Check whether your installed version is affected.
Scan your site freeThe Simple Membership plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 4.7.8. This makes it possible for unauthenticated attackers to perform an unauthorized action.
The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 4.7.7 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 acce...
The Simple Membership plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 4.7.7. This makes it possible for unauthenticated attackers to perform an unauthorized action.
The Simple Membership plugin for WordPress is vulnerable to Payment Verification Bypass in versions up to, and including, 4.7.6. This is due to missing verification that the PayPal IPN receiver_email matches the configured PayPal email for the payment button. This makes it possible for unauthenticated attackers to bypa...
The Simple Membership plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.7.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to deactivate arbitrary member accounts by f...
The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 4.7.2 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 acce...
The Simple Membership plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 4.7.1. This makes it possible for unauthenticated attackers to perform an unauthorized action.
[en] Missing Authorization vulnerability in wp.insider Simple Membership simple-membership allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simple Membership: from n/a through <= 4.6.9.
The Simple Membership plugin for WordPress is vulnerable to Improper Handling of Missing Values in all versions up to, and including, 4.7.0 via the Stripe webhook handler. This is due to the plugin only validating webhook signatures when the stripe-webhook-signing-secret setting is configured, which is empty by default...
The Simple Membership plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 4.6.9. This makes it possible for authenticated attackers, with Subscriber-level access and above, to perform an unauthorized action.
[en] Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wp.insider Simple Membership allows Stored XSS. This issue affects Simple Membership: from n/a through 4.6.3.
The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 4.6.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pa...
[en] The Simple Membership plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.5.5 via the WordPress core search feature. This makes it possible for unauthenticated attackers to extract sensitive data from posts that have been restricted to higher-level roles suc...
The Simple Membership plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.5.5 via the WordPress core search feature. This makes it possible for unauthenticated attackers to extract sensitive data from posts that have been restricted to higher-level roles such as...
[en] URL Redirection to Untrusted Site ('Open Redirect') vulnerability in smp7, wp.Insider Simple Membership allows Phishing.This issue affects Simple Membership: from n/a through 4.5.3.
The Simple Membership plugin for WordPress is vulnerable to Open Redirect in all versions up to, and including, 4.5.3. This is due to insufficient validation on the redirect url supplied. This makes it possible for unauthenticated attackers to redirect users to potentially malicious sites if they can successfully trick...
[en] Improper Authentication vulnerability in smp7, wp.Insider Simple Membership.This issue affects Simple Membership: from n/a through 4.3.4.
[en] Improper Privilege Management vulnerability in smp7, wp.Insider Simple Membership allows Privilege Escalation.This issue affects Simple Membership: from n/a through 4.3.4.
[en] The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'swpm_paypal_subscription_cancel_link' shortcode in all versions up to, and including, 4.4.5 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for au...
The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'swpm_paypal_subscription_cancel_link' shortcode in all versions up to, and including, 4.4.5 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authent...
[en] The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'swpm_paypal_subscription_cancel_link' shortcode in all versions up to, and including, 4.4.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for au...
The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'swpm_paypal_subscription_cancel_link' shortcode in all versions up to, and including, 4.4.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authent...
[en] The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Display Name' parameter in all versions up to, and including, 4.4.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pa...
The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Display Name' parameter in all versions up to, and including, 4.4.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages t...
[en] URL Redirection to Untrusted Site ('Open Redirect') vulnerability in smp7, wp.Insider Simple Membership.This issue affects Simple Membership: from n/a through 4.4.1.
The Simple Membership plugin for WordPress is vulnerable to Open Redirect in all versions up to, and including, 4.4.1. This is due to insufficient validation on the redirect url supplied via the swpm_page_url parameter. This makes it possible for unauthenticated attackers to redirect users to potentially malicious site...
[en] The Simple Membership plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘environment_mode’ parameter in all versions up to, and including, 4.3.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web script...
The Simple Membership plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via an unknown parameter in all versions up to 4.3.9 (exclusive) due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execu...
[en] Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in smp7, wp.Insider Simple Membership allows Reflected XSS.This issue affects Simple Membership: from n/a through 4.3.8.
The Simple Membership plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘environment_mode’ parameter in all versions up to, and including, 4.3.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in...
The Simple Membership plugin for WordPress is vulnerable to account takeover due to missing input validation on the process_password_reset_using_link function in versions up to, and including, 4.3.4. This makes it possible for authenticated attackers to gain access to arbitrary accounts on the site via the password res...
The Simple Membership plugin for WordPress is vulnerable to privilege escalation due to missing input validation on the create_swpm_user function in versions up to, and including, 4.3.4. This makes it possible for unauthenticated attackers to register users with arbitrary membership levels. Since membership levels can...
[en] The Simple Membership plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `list_type` parameter in versions up to, and including, 4.3.5 due to insufficient input sanitization and output escaping. Using this vulnerability, unauthenticated attackers could inject arbitrary web scripts into pa...
The Simple Membership plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `list_type` parameter in versions up to, and including, 4.3.5 due to insufficient input sanitization and output escaping. Using this vulnerability, unauthenticated attackers could inject arbitrary web scripts into pages t...
[en] The Simple Membership WordPress plugin before 4.2.2 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such a...
The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting via shortcode in versions up to, and including, 4.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary...
[en] The Simple Membership WordPress plugin before 4.1.3 does not properly validate the membership_level parameter when editing a profile, allowing members to escalate to a higher membership level by using a crafted POST request.
[en] The Simple Membership WordPress plugin before 4.1.3 allows user to change their membership at the registration stage due to insufficient checking of a user supplied parameter.
The Simple Membership plugin for WordPress is vulnerable to membership related privilege escalation in versions up to, and including, 4.1.2. This is due to insufficient validation on the membership level_identifier supplied which makes it possible for unauthenticated users to supplied arbitrary membership levels and be...
The Simple Membership plugin for WordPress is vulnerable to membership related privilege escalation in versions up to, and including, 4.1.2. This is due to insufficient validation on the membership membership_level supplied which makes it possible for authenticated users to supplied arbitrary membership levels and be g...
[en] The Simple Membership WordPress plugin before 4.1.1 does not properly sanitise and escape parameters before outputting them back in AJAX actions, leading to Reflected Cross-Site Scripting
The Simple Membership WordPress plugin before 4.1.1 does not properly sanitise and escape parameters before outputting them back in AJAX actions, leading to Reflected Cross-Site Scripting
[en] The Simple Membership WordPress plugin before 4.1.0 does not have CSRF check in place when deleting Transactions, which could allow attackers to make a logged in admin delete arbitrary transactions via a CSRF attack
[en] The Simple Membership WordPress plugin before 4.0.9 does not have CSRF check when deleting members in bulk, which could allow attackers to make a logged in admin delete them via a CSRF attack
The Simple Membership WordPress plugin before 4.1.0 does not have Cross-Site Request Forgery (CSRF) protections in place when deleting Transactions, which could allow attackers to make a logged in admin delete arbitrary transactions via a CSRF attack
The Simple Membership WordPress plugin before 4.0.9 does not have CSRF check when deleting members in bulk, which could allow attackers to make a logged in admin delete them via a CSRF attack
The Simple Membership plugin for WordPress is vulnerable to time-based SQL Injection via the 's' and 'status' parameters in versions up to, and including, 4.0.3 due to insufficient escaping on the user-supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authentic...
The Simple Membership plugin for WordPress is vulnerable to time-based SQL Injection via the 's' and 'status' parameters in versions up to, and including, 4.0.3 due to insufficient escaping on the user-supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authentic...
[en] The simple-membership plugin before 3.3.3 for WordPress has multiple CSRF issues.
[en] The simple-membership plugin before 3.5.7 for WordPress has XSS.
[en] The Simple Membership plugin before 3.8.5 for WordPress has CSRF affecting the Bulk Operation section.
The Simple Membership plugin before 3.8.5 for WordPress has CSRF affecting the Bulk Operation section.
The Simple Membership plugin for WordPress is vulnerable to Cross-Site Scripting in versions up to, and including, 3.5.6 due to insufficient input sanitization and output escaping. This makes it possible for attackers to inject arbitrary web scripts that execute in a victim's browser.
The Simple Membership plugin for WordPress is vulnerable to multiple Cross-Site Request Forgery attacks in versions up to, and including, 3.3.2. This is due to missing or incorrect nonce validation. This makes it possible for unauthenticated attackers to gain administrative access and perform otherwise restricted actio...
The Simple Membership plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘page’ parameter in versions before 3.2.9 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...
The Simple Membership plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘page’ parameter in versions before 3.2.9 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...
Because of this vulnerability, the attackers can inject arbitrary web script or HTML. Update the plugin.
The Simple Membership WordPress plugin was affected by a Cross-Site Scripting (XSS) security vulnerability.
** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.
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