Privilege escalation in Clavaque S2member – Excellent For All Kinds Of Memberships, Content Restriction Paywalls & Member Access Subscriptions

CVE-2026-1994

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.

Vulnerability class: Privilege Escalation

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (29.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-1994: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-1994?
CVE-2026-1994 is a critical-severity vulnerability in Clavaque S2member – Excellent For All Kinds Of Memberships, Content Restriction Paywalls & Member Access Subscriptions, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2026-02-19.
How severe is CVE-2026-1994?
Critical severity. CVSS v3 base score is 9.8 out of 10.