The s2Member plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 260127. This is due to the plugin not properly validating a user's identity prior to updating their password. This makes it possible for unauthenticated attackers to change arbitrary user's passwords, including administrators, and leverage that to gain access to their account.
CVE-2026-1994 is a critical severity with CVSS 9.8 Privilege Escalation issue affecting the Plugin s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions. It affects Versions up to 260127 and is fixed in 260215.
CVE-2026-1994 is tracked for the Plugin s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions as critical severity with CVSS 9.8. The affected range is Versions up to 260127. Update s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions to 260215 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
s2member
View on wordpress.org
|
| CVE | CVE-2026-1994 |
| Patched Versions |
260215
|
| Affected Versions |
Versions up to 260127
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
s2Member <= 250905 - Unauthenticated Remote Code Execution
s2Member <= 240315 - Limited Privilege Escalation
s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions <= 241114 - Authenticated (Contributor+) Sensitive Information Exposure
s2Member <= 250701 - Unauthenticated PHP Object Injection
s2Member (Pro) <= 241114 - Unauthenticated Remote Code Execution
s2Member <= 250419 - Authenticated (Administrator+) Local File Inclusion
s2Member® Framework (Membership, Member Level Roles, Access Capabilities, PayPal Members) < 111220 - Cross-Site Scripting
s2Member <= 251005 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
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