Critical severity · published Feb 19, 2026
CVE-2026-1994
s2Member <= 260127 - Unauthenticated Privilege Escalation via Account Takeover
9.8
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions · clavaque
through 260127 · source: vendor
Affected product
SE
s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions
clavaque
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1994
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1994
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/s2member/tags/260127/src/includes/classes/registrations.inc.php#L74
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3461625/s2member#file5
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/6c31cf92-26b7-484d-8c93-ce241d655d07?source=cve
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