WordPressプラグイン「Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker」に信頼できないデータのデシリアライズの脆弱性（CVE-2026-111408）
概要
WordPressプラグイン「Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker」に信頼できないデータのデシリアライズの脆弱性が確認されました。
バージョン 11.2.7 以前に影響があります。
修正版 11.2.8 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-111408 WF-60ed3820-0ef3-415c-a742-d4f9f42418a3 |
|---|---|
| 脆弱性の種類 | 信頼できないデータのデシリアライズ |
| 危険度 | 高 |
| CVSSスコア |
7.5（CVSS v3.1） CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 公開日 | 2026年10月17日 |
| 更新日 | 2026年10月23日 |
影響を受ける製品
| 製品 | 影響を受けるバージョン | 修正版 | 出典 |
|---|---|---|---|
| WordPressプラグイン「Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker」 |
11.2.7 以前 | 11.2.8 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker」を修正版 11.2.8 またはそれ以降の公式最新版へ更新してください。
情報元の原文
Wordfence Intelligence
Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker <= 11.2.7 - Authenticated (Contributor+) PHP Object Injection
The Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 11.2.7. This is due to deserialization of untrusted input. This makes it possible for authenticated attackers, with contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
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