CRITICAL

CVE-2026-86596

Published 2026-11-02 CVSS v3.1
CVSS Score
9.8

Description

The s2Member plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, <= 260927 via the 'item_name' parameter parameter. This is due to insufficient sanitization in strip_php_tags_deep(), which only strips literal '<?' sequences, combined with a post-interpolation placeholder cleanup that reassembles a valid '<?php' opener after the attacker-controlled value has already been embedded in the email template. This makes it possible for authenticated attackers, with custom-level access and above, to execute code on the server.

Weakness Classification (CWE)

CWE-94 Code Injection

References

Primary Sources

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CVE data aggregated from the National Vulnerability Database (NVD, public domain) and enriched by dbcve.org.