WordPressプラグイン「Wp Social Login and Register Social Counter」にクロスサイトスクリプティング（XSS）の脆弱性（CVE-2026-97344）
概要
WordPressプラグイン「Wp Social Login and Register Social Counter」にクロスサイトスクリプティング（XSS）の脆弱性が確認されました。
バージョン 3.2.1 以前に影響があります。
修正版 3.2.2 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-97344 WF-40e03292-c2dc-4d34-88f4-0d0631e7b981 |
|---|---|
| 脆弱性の種類 | クロスサイトスクリプティング（XSS） |
| 危険度 | 中 |
| CVSSスコア |
6.4（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
| 公開日 | 2026年10月2日 |
| 更新日 | 2026年10月3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「Wp Social Login and Register Social Counter」 |
3.2.1 以前 | 3.2.2 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Wp Social Login and Register Social Counter」を修正版 3.2.2 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
Wp Social Login and Register Social Counter <= 3.2.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Avatar Alt Attribute via Arbitrary User Meta Write
The Wp Social Login and Register Social Counter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Avatar Alt Attribute via Arbitrary User Meta Write in all versions up to, and including, 3.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the attacker to chain two steps: invoking the nonce-only dismiss_ajax_call endpoint (nonce accessible to Subscribers via any wp-admin page) to set the xs_social_profile_image meta flag on their own account, which activates the unescaped img output branch in xs_social_get_avatar, and then setting their display name to a script payload that core's ENT_NOQUOTES handling preserves unescaped.
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.