WordPressプラグイン「rtMedia for WordPress, BuddyPress and bbPress」に認可の欠如の脆弱性（CVE-2026-89301）
概要
WordPressプラグイン「rtMedia for WordPress, BuddyPress and bbPress」に認可の欠如の脆弱性が確認されました。
バージョン 4.7.13 以前に影響があります。
修正版 4.7.14 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-89301 WF-ea679227-5ab3-408b-ae1b-340099880789 |
|---|---|
| 脆弱性の種類 | 認可の欠如 |
| 危険度 | 高 |
| CVSSスコア |
7.5（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| 公開日 | 2026年10月9日 |
| 更新日 | 2026年10月10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「rtMedia for WordPress, BuddyPress and bbPress」 |
4.7.13 以前 | 4.7.14 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「rtMedia for WordPress, BuddyPress and bbPress」を修正版 4.7.14 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
rtMedia for WordPress, BuddyPress and bbPress <= 4.7.13 - Missing Authorization to Unauthenticated Limited File Read/Disclosure and Limited File Deletion via Sideload via 'files[tmp_name]' Parameter
The rtMedia for WordPress, BuddyPress and bbPress plugin for WordPress is vulnerable to limited file deletion due to insufficient file path validation in the process function in all versions up to, and including, 4.7.13 This makes it possible for unauthenticated attackers to delete arbitrary safe files on the server.. The public nonce (rtmedia_upload_nonce) is emitted into frontend JavaScript on any page rendering the rtMedia gallery or upload shortcode, making it retrievable by unauthenticated visitors without any prior authentication or privileged action.
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.