WordPressプラグイン「Spectra Legacy – Gutenberg Blocks」に情報漏えいの脆弱性（CVE-2026-16302）
概要
WordPressプラグイン「Spectra Legacy – Gutenberg Blocks」に情報漏えいの脆弱性が確認されました。
バージョン 2.20.0 以前に影響があります。
修正版 2.20.1 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-16302 WF-eede8a1e-db33-4c07-9991-9def75dddc87 |
|---|---|
| 脆弱性の種類 | 情報漏えい |
| 危険度 | 中 |
| CVSSスコア |
4.3（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| 公開日 | 2026年9月23日 |
| 更新日 | 2026年9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「Spectra Legacy – Gutenberg Blocks」 |
2.20.0 以前 | 2.20.1 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Spectra Legacy – Gutenberg Blocks」を修正版 2.20.1 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
Spectra Legacy – Gutenberg Blocks <= 2.20.0 - Authenticated (Contributor+) Sensitive Information Exposure
The Spectra Legacy – Gutenberg Blocks plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.20.0 via the editor_assets function, which exposes the uag_insta_linked_accounts option through the uagb_blocks_info object without a capability check. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract sensitive data including raw Instagram Graph API access tokens configured by an administrator. Exploitation requires the Spectra Pro plugin to be active with a linked Instagram account.
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.