Hostel <= 1.1.6 - Reflected Cross-Site Scripting via 'shortcode_id' Parameter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Hostel plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'shortcode_id' parameter in all versions up to, and including, 1.1.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-1838
- 2026-10-03 Alias added: GHSA-jxx9-cx33-fcm4
References
Other 9
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2b9da491-771a-4100-b41a-7411981dd34b?source=cve
- https://plugins.trac.wordpress.org/browser/hostel/trunk/hostel.php#L44
- https://plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/hostel.php#L44
- https://plugins.trac.wordpress.org/browser/hostel/trunk/controllers/ajax.php#L28
- https://plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/controllers/ajax.php#L28
- https://plugins.trac.wordpress.org/browser/hostel/trunk/views/partial/rooms-table.html.php#L29
- https://plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/views/partial/rooms-table.html.php#L29
- https://plugins.trac.wordpress.org/changeset/3478265/hostel/trunk/hostel.php
- https://plugins.trac.wordpress.org/changeset?old_path=%2Fhostel/tags/1.1.6&new_path=%2Fhostel/tags/1.1.7
More prasunsen vulnerabilities
- TI-2024-33841 WordPress Namaste! LMS plugin <= 2.6.3 - PHP Object Injection vulnerability CVSS 3.1HIGH 8.8
- TI-2023-00405 Watu Quiz < 3.3.8.2 - Reflected XSS CVSS 3.1HIGH 7.5
- TI-2024-02456 Watu Quiz < 3.4.1.2 - Author+ Stored XSS CVSS 3.1MEDIUM 6.8
- TI-2025-05640 Hostel < 1.1.5.8 - Reflected XSS CVSS 3.1MEDIUM 6.1
- TI-2024-03499 Hostel < 1.1.5.3 - Reflected XSS CVSS 3.1MEDIUM 5.9
- TI-2022-03861 Chained Quiz <= 1.3.2.2 - Authenticated (Admin+) Stored Cross-Site Scripting via Mailchimp API Key CVSS 3.1MEDIUM 5.5
Sources
- CVE-2026-1838 · CVE Program
- CVE-2026-1838 · NVD
- FIRST EPSS
- GHSA-jxx9-cx33-fcm4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences