CVE-2025-32137

s2Member <= 250419 - Authenticated (Administrator+) Local File Inclusion

2025-04-04 00:00
Hakiduck

Strategic Overview

Status
Patched in 250424
Affected Plugin
s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions
Affected Version
<= 250419
CVSS
7.2High
Weakness type
CWE-98 · Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')
CVE
CVE-2025-32137
View all s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions vulnerabilities

At a glance

CVE-2025-32137 is a high-severity Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in the s2Member WordPress plugin, affecting versions <= 250419. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Administrator level or above. The issue is fixed in version 250424; sites on affected versions should update now. Disclosed April 2025, reported by Hakiduck.

Vulnerability Overview

The s2Member plugin for WordPress is vulnerable to Local File Inclusion in versions up to, and including, 250419 via the 'ws_plugin__s2member_log_file' parameter. This makes it possible for authenticated attackers, with administrator-level access and above, to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-98: Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')

s2Member <= 250419 carries this weakness at ws_plugin__s2member_log_file, and reaching it takes an account at Administrator level or above. PHP file inclusion means a path used by include or require is built from request data, so the file that gets executed is under the caller's influence.

Including an attacker-influenced file executes its contents, which is why this class is routinely chained with an upload or log-poisoning step to reach code execution. For s2Member the fix is 250424: builds <= 250419 are affected, anything from 250424 onward is not.

Remediation

Update to version 250424, or a newer patched version

How does WordSec protect against this?

An attacker needs Administrator access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: s2Member 250424 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Scanner
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-32137https://www.wordfence.com/threat-intel/vulnerabilities/id/6f4ea8c9-4e4b-41a7-a2ca-826cbd7d8c23https://nvd.nist.gov/vuln/detail/CVE-2025-32137

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C