CVE-2026-86596 s2Member WordPress plugin - Remote Code Execution

s2Member WordPress plugin <= 260927 contains a remote code execution caused by insufficient sanitization in strip_php_tags_deep() and post-interpolation placeholder cleanup in 'item_name' parameter, letting authenticated attackers with custom-level access execute code on the server.

CVSS base score 9.8 /10
Critical
CISA KEV
Exploited in the wild
Public exploit
Proof of concept available
Authentication
Not required
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2 November 2026
Updated
3 November 2026
Weakness
CWE-94

Vendor fix

Update to the latest version beyond 260927.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs