CVE-2025-62023

s2Member <= 250905 - Unauthenticated Remote Code Execution

2025-10-01 00:00
Drew Webber (mcdruid)

Strategic Overview

Status
Patched in 251005
Affected Plugin
s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions
Affected Version
<= 250905
CVSS
9.8Critical
Weakness type
CWE-94 · Improper Control of Generation of Code ('Code Injection')
CVE
CVE-2025-62023
View all s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions vulnerabilities

At a glance

CVE-2025-62023 is a critical-severity Improper Control of Generation of Code ('Code Injection') vulnerability in the s2Member WordPress plugin, affecting versions <= 250905. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 251005; sites on affected versions should update now. Disclosed October 2025, reported by Drew Webber (mcdruid).

Vulnerability Overview

The s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 250905. This makes it possible for unauthenticated attackers to execute code on the server.

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 privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-94: Improper Control of Generation of Code ('Code Injection')

Reaching this weakness in s2Member <= 250905 takes no account at all. Code injection means input from a request reaches a language construct that evaluates code, so the attacker's text is executed rather than treated as data.

The injected code runs with the web server's privileges, giving the attacker the same access to the database and filesystem as WordPress itself. For s2Member the fix is 251005: builds <= 250905 are affected, anything from 251005 onward is not.

Remediation

Update to version 251005, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: 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 251005 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Scanner
  • Login Security

External References

https://www.cve.org/CVERecord?id=CVE-2025-62023https://www.wordfence.com/threat-intel/vulnerabilities/id/98ca009b-0e15-4945-a5c3-b08c081e7577https://nvd.nist.gov/vuln/detail/CVE-2025-62023

Related records

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