s2Member Pro <= 241216 - Reflected Cross-Site Scripting

6.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2025-26879
CVSS 6.1 (Medium)
Publicly Published February 22, 2025
Last Updated March 3, 2025
Researcher 0xd4rk5id3 - EnvoraSec

Description

The s2Member Pro plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 241216 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.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

References

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Vulnerability Details for s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions

Software Type Plugin
Software Slug s2member (view on wordpress.org)
Patched? Yes
Remediation Update to version 250214, or a newer patched version
Affected Version
  • <= 241216
Patched Version
  • 250214

Recent vulnerabilities in s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions

# Title CVE ID CVSS Researchers Date
1 s2Member <= 260127 - Unauthenticated Privilege Escalation via Account Takeover CVE-2026-1994 9.8 Alyudin Nafiie February 18, 2026
2 s2Member <= 251005 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode CVE-2025-13732 6.4 Muhammad Yudha - DJ February 18, 2026
3 s2Member <= 250905 - Unauthenticated Remote Code Execution CVE-2025-62023 9.8 Drew Webber (mcdruid) October 1, 2025
4 s2Member <= 250701 - Unauthenticated PHP Object Injection CVE-2025-58998 8.1 ChuongVN August 21, 2025
5 s2Member <= 250419 - Authenticated (Administrator+) Local File Inclusion CVE-2025-32137 7.2 Hakiduck April 4, 2025
6 s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions <= 241216 - Reflected Cross-Site Scripting CVE-2024-11376 6.1 vgo0 February 17, 2025
7 s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions <= 241114 - Authenticated (Contributor+) Sensitive Information Exposure CVE-2024-8326 8.8 wesley (wcraft) December 16, 2024
8 s2Member (Pro) <= 241114 - Unauthenticated Remote Code Execution CVE-2024-51815 8.1 Hakiduck December 2, 2024
9 s2Member <= 240315 - Limited Privilege Escalation CVE-2024-31237 9.1 Ngô Thiên An (ancorn_) April 5, 2024
10 s2Member – Best Membership Plugin for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions <= 230815 - Information Exposure CVE-2024-0899 5.3 Francesco Carlucci March 18, 2024

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