CVE-2026-1645
Received Received - Intake

Stored XSS in Hostel WordPress Plugin

Publication date: 2026-09-22

Last updated on: 2026-09-22

Assigner: Wordfence

Description
The Hostel plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'custom_currency' parameter and the 'locale_url' setting in all versions up to, and including, 1.1.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

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Meta Information

Published
2026-09-22
Last Modified
2026-09-22
Generated
2026-09-22
AI Q&A
2026-09-22
EPSS Evaluated
N/A
NVD
CVE-2026-1645
EUVD
EUVD-2026-84302

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wp_hotel hostel to 1.1.8 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the Hostel plugin for WordPress. It exists due to insufficient input sanitization and output escaping in the 'custom_currency' parameter and 'locale_url' setting. Authenticated attackers with Administrator-level access can inject malicious scripts into pages. These scripts execute when users access the compromised pages.

Detection Guidance

This vulnerability requires checking WordPress installations for the Hostel plugin versions up to 1.1.8. Inspect plugin files for the 'custom_currency' parameter and 'locale_url' setting in multi-site or unfiltered_html disabled environments. No specific commands are provided in the context.

Impact Analysis

If exploited, this vulnerability allows attackers to inject arbitrary web scripts into pages. This could lead to unauthorized actions on behalf of users, theft of sensitive data, or defacement of websites. The impact is limited to multi-site installations or those where unfiltered_html is disabled.

Compliance Impact

This vulnerability could lead to data breaches, exposing user data. For GDPR, this may result in non-compliance due to unauthorized data access or processing. For HIPAA, it could violate safeguards for protected health information. Organizations must address this to maintain compliance.

Mitigation Strategies

Update the Hostel plugin to the latest version beyond 1.1.8. Ensure input sanitization is applied to 'custom_currency' and 'locale_url'. Restrict Administrator-level access to trusted users only. Disable unfiltered_html if not required.

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