WordPressテーマ「Astra」にインジェクションの脆弱性（CVE-2026-27085）
概要
WordPressテーマ「Astra」にインジェクションの脆弱性が確認されました。
バージョン 4.13.12 以前に影響があります。
修正版 4.14.0 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-27085 WF-a81b1d68-022d-4513-ba62-fb353d0147af |
|---|---|
| 脆弱性の種類 | インジェクション |
| 危険度 | 高 |
| CVSSスコア |
7.2（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| 公開日 | 2026年9月30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テーマ「Astra」 |
4.13.12 以前 | 4.14.0 | Wordfence Intelligence |
推奨対応
- WordPressテーマ「Astra」を修正版 4.14.0 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
Astra <= 4.13.12 - Authenticated (Shop Manager+) Arbitrary CSS Injection
The Astra theme for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.13.12. This is due to missing sanitize_callback on the astra-color-palettes and astra-settings[global-color-palette] customizer controls, combined with insufficient CSS value sanitization that did not strip declaration-breaking characters such as semicolons and braces. This makes it possible for authenticated attackers, with shop manager-level access and above, to inject arbitrary CSS into pages by supplying crafted color values through the global color palette customizer setting, breaking out of CSS declarations and altering page appearance or injecting malicious style rules.
Copyright 2012-2026 Defiant Inc.
Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.
Copyright 1999-2026 The MITRE Corporation
CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.