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TI-2026-01651 Aliases CVE-2026-1994GHSA-2h7x-xp9w-mxwc

s2Member <= 260127 - Unauthenticated Privilege Escalation via Account Takeover

Priority MEDIUM 49CWE-269Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00428 37th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
clavaques2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptionsup to 260127—No fix listedCNA
  • s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions Vendorclavaque Affected up to 260127 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-1994
  2. 2026-10-03 Alias added: GHSA-2h7x-xp9w-mxwc

References

Other 3

  • TI-2026-84120 Code injection in s2Member plugin via item_name IPN parameter CVSS 3.1CRITICAL 9.8
  • TI-2026-16062 s2Member <= 260814 - Unauthenticated Remote Code Execution via 'first_name' Parameter in PayPal Proxy Return CVSS 3.1HIGH 8.8
  • TI-2024-07720 Information disclosure in clavaque s2Member – Excellent for All Kinds of Memberships… CVSS 3.1HIGH 8.8
  • TI-2024-00828 Improper access control in clavaque s2Member – Excellent for All Kinds of Memberships… CVSS 3.1MEDIUM 5.3
  • TI-2026-81740 Stored cross-site scripting in s2Member WordPress plugin CVSS 3.1MEDIUM 6.4
  • TI-2025-12552 s2Member <= 251005 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode CVSS 3.1MEDIUM 6.4
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences