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Critical 9.8

s2Memberにコード実行の脆弱性、260927以前が対象

CVE-2026-86596 First seen on SecPulse

Summary

WordPressの会員制プラグインs2Memberに、サーバー上でコードを実行されるおそれのある脆弱性が11月2日に公表されました。260927以前を使うサイトは、更新の有無を確認して修正版を適用し、難しければ無効化を検討してください。

AI summary

Produced by SecPulse using an external AI model; it may contain mistakes. Check the original description and references below before acting on it.

WordPressの会員制プラグインs2Memberに、サーバー上でコードを実行されるおそれのある脆弱性が11月2日に公表されました。260927以前を使うサイトは、更新の有無を確認して修正版を適用し、難しければ無効化を検討してください。

Affected packages

EcosystemPackageAffectedFixed
clavaque s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions
≤ 260927
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Original description The description as published by the source.

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.

Source: CVE.org (CVE Program・cvelistV5) NVD

References

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