CVE-2026-3907— Hostel <= 1.1.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'wphostel-book' Shortcode
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I. Basic Information for CVE-2026-3907
Vulnerability Information
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Vulnerability Title
Hostel <= 1.1.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'wphostel-book' Shortcode
Source: CVE Program / CVE List V5
Vulnerability Description
The Hostel plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wphostel-book' shortcode in all versions up to and including 1.1.7. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, the second shortcode attribute (used as button text) is passed to the `$text` variable without sanitization at line 79 and then output directly into an HTML `value` attribute at line 91 without `esc_attr()` or any other escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Hostel 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Hostel是WordPress基金会的一款内容管理系统的组件。 WordPress Hostel 1.1.7及之前版本存在跨站脚本漏洞，该漏洞源于对用户提供的短代码属性输入清理和输出转义不足，导致容易受到存储型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-3907
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Patches & Fixes for CVE-2026-3907 (4)
Vendor Advisories for CVE-2026-3907 (1)
IV. Related Vulnerabilities
Same product: Hostel
- CVE-2026-1838
Hostel <= 1.1.6 - Reflected Cross-Site Scripting via 'shortc - CVE-2023-32120
WordPress Hostel plugin <= 1.1.5.1 - Cross Site Scripting (X - CVE-2025-66119
WordPress Hostel plugin <= 1.1.5.9 - Cross Site Scripting (X - CVE-2025-6236
Hostel < 1.1.5.9 - Admin+ Stored XSS - CVE-2025-6234
Hostel < 1.1.5.8 - Reflected XSS
Same vendor: prasunsen
- CVE-2026-1838
Hostel <= 1.1.6 - Reflected Cross-Site Scripting via 'shortc - CVE-2025-11238
Watu Quiz <= 3.4.4 - Unauthenticated Stored Cross-Site Scrip - CVE-2025-10493
Chained Quiz <= 1.3.5 - Unauthenticated Insecure Direct Obje - CVE-2024-4314
hostel <= 1.1.5.3 - Cross-Site Request Forgery - CVE-2024-0873
Watu Quiz <= 3.4.1 - Authenticated (Contributor+) Stored Cro
Same weakness: CWE-79
- CVE-2026-75981
TranslatePress – Translate Multilingual sites with AI Transl - CVE-2026-15446
EWWW Image Optimizer <= 8.7.3 - Authenticated (Contributor+) - CVE-2026-15780
WP Statistics <= 14.16.8 - Unauthenticated Stored Cross-Site - CVE-2026-66358
acmailer跨站脚本漏洞 - CVE-2026-15421
Speed Optimizer <= 7.8.0 - Authenticated (Contributor+) Stor
V. Comments for CVE-2026-3907
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