WordPressプラグイン「Flatastic - Versatile MultiVendor WordPress Theme」に信頼できないデータのデシリアライズの脆弱性（CVE-2026-66672）
概要
WordPressプラグイン「Flatastic - Versatile MultiVendor WordPress Theme」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 2.0 以前に影響があります。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-66672 WF-74184cfd-d3ce-4295-8c17-89e521139445 |
|---|---|
| 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 |
8.1（CVSS v3.1） CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 公開日 | 2026年8月20日 |
| 更新日 | 2026年8月24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「Flatastic - Versatile MultiVendor WordPress Theme」 |
2.0 以前 | — | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Flatastic - Versatile MultiVendor WordPress Theme」の提供元が公開している最新情報を確認し、公式の最新版へ更新してください。
情報元の原文
Wordfence Intelligence
Flatastic <= 2.0 - Unauthenticated PHP Object Injection
The Flatastic - Versatile MultiVendor WordPress Theme plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.0 via deserialization of untrusted input. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
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