CVE-2026-1994

CRITICAL EXPLOITED

s2Member WordPress Plugin <260127 - Privilege Escalation

Title source: llm

Description

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.

References (3)

[Product] https://plugins.trac.wordpress.org/changeset/3461625/s2member#file5

[Product] https://plugins.trac.wordpress.org/browser/s2member/tags/260127/src/includes/classes/registrations.inc.php#L74

[Third Party Advisory] https://www.wordfence.com/threat-intel/vulnerabilities/id/6c31cf92-26b7-484d-8c93-ce241d655d07?source=cve

Scores

CVSS v3 9.8

EPSS 0.0010

EPSS Percentile 27.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

VulnCheck KEV 2026-02-19

CWE

CWE-269

Status published

Products (1)

clavaque/s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions < 260127

Published Feb 19, 2026

Tracked Since Feb 19, 2026