WordPressプラグイン「Tainacan」にパストラバーサルの脆弱性（CVE-2026-104743）
概要
WordPressプラグイン「Tainacan」にパストラバーサルの脆弱性が確認されました。
バージョン 1.3.0 以前に影響があります。
修正版 1.4.0 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-104743 WF-e16bda6d-0818-468b-9114-82a8f5f68caf |
|---|---|
| 脆弱性の種類 | パストラバーサル |
| 危険度 | 中 |
| CVSSスコア |
4.9（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
| 公開日 | 2026年10月27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「Tainacan」 |
1.3.0 以前 | 1.4.0 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Tainacan」を修正版 1.4.0 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
Tainacan <= 1.3.0 - Authenticated (Editor+) Path Traversal to Arbitrary File Read via 'tmp_file' Parameter via Mass Assignment
The Tainacan plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.3.0 via the 'tmp_file' parameter parameter. This makes it possible for authenticated attackers, with editor-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. The poisoned importer path is persisted to the database and later triggered via a separate GET request to the /source_info endpoint, which passes the attacker-controlled path to fopen() and fgetcsv() and returns parsed file contents in the REST response.
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