--- title: "CVE-2026-86596: s2Member WordPress plugin - Remote Code Execution" description: "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." url: https://panop.io/threat-heartbeat/CVE-2026-86596/ --- # 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 ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-86596) ## 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](https://cwe.mitre.org/data/definitions/94.html) ## 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 - [https://nvd.nist.gov/vuln/detail/CVE-2026-86596](https://nvd.nist.gov/vuln/detail/CVE-2026-86596) - [https://plugins.trac.wordpress.org/browser/s2member/tags/260829/src/includes/classes/paypal-notify-in-web-accept-sp.inc.php#L104](https://plugins.trac.wordpress.org/browser/s2member/tags/260829/src/includes/classes/paypal-notify-in-web-accept-sp.inc.php#L104) - [https://plugins.trac.wordpress.org/browser/s2member/tags/260829/src/includes/classes/utilities.inc.php#L49](https://plugins.trac.wordpress.org/browser/s2member/tags/260829/src/includes/classes/utilities.inc.php#L49) - [https://plugins.trac.wordpress.org/browser/s2member/tags/260829/src/includes/classes/utils-strings.inc.php#L201](https://plugins.trac.wordpress.org/browser/s2member/tags/260829/src/includes/classes/utils-strings.inc.php#L201) - [https://patchstack.com/database/wordpress/plugin/s2member/vulnerability/wordpress-s2member-excellent-for-all-kinds-of-memberships-content-restriction-paywalls-member-access-subscriptions-plugin-260927-unauthenticated-remote-code-execution-vulnerability](https://patchstack.com/database/wordpress/plugin/s2member/vulnerability/wordpress-s2member-excellent-for-all-kinds-of-memberships-content-restriction-paywalls-member-access-subscriptions-plugin-260927-unauthenticated-remote-code-execution-vulnerability) - [https://plugins.trac.wordpress.org/browser/s2member/tags/260829/src/includes/classes/paypal-notify-in-subscr-or-wa-w-level.inc.php#L514](https://plugins.trac.wordpress.org/browser/s2member/tags/260829/src/includes/classes/paypal-notify-in-subscr-or-wa-w-level.inc.php#L514) - [https://plugins.trac.wordpress.org/browser/s2member/tags/260829/src/includes/classes/paypal-notify-in-web-accept-sp.inc.php#L131](https://plugins.trac.wordpress.org/browser/s2member/tags/260829/src/includes/classes/paypal-notify-in-web-accept-sp.inc.php#L131) - [https://plugins.trac.wordpress.org/browser/s2member/tags/260829/src/includes/classes/paypal-notify-in-web-accept-sp.inc.php#L138](https://plugins.trac.wordpress.org/browser/s2member/tags/260829/src/includes/classes/paypal-notify-in-web-accept-sp.inc.php#L138) - [https://plugins.trac.wordpress.org/browser/s2member/tags/260829/src/includes/classes/paypal-notify-in.inc.php#L49](https://plugins.trac.wordpress.org/browser/s2member/tags/260829/src/includes/classes/paypal-notify-in.inc.php#L49) - [https://plugins.trac.wordpress.org/changeset/3722434/s2member](https://plugins.trac.wordpress.org/changeset/3722434/s2member) - [https://www.wordfence.com/threat-intel/vulnerabilities/id/bbe64cd3-c5ca-4867-90de-4784510a1126?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/bbe64cd3-c5ca-4867-90de-4784510a1126?source=cve) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)