Hostel <= 1.1.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'wphostel-book' Shortcode
| CVE | CVE-2026-3907 |
|---|---|
| CVSS | 6.4 (Medium) |
| Publicly Published | July 9, 2026 |
| Last Updated | July 10, 2026 |
| Researcher |
Muhammad Yudha - DJ
|
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.
Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for Hostel
| Software Type | Plugin |
|---|---|
| Software Slug | hostel (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 1.1.8, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Hostel
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