What’s Vulnerable › Vulnerabilities

CVE-2026-1645: Hostel <= 1.1.8 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'custom_currency' Parameter and Localization file URL Setting

• Severity: medium (CVSS 4.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-22 · updated 2026-09-22
• Weakness: CWE-79

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.

Affected products

• Bob Hostel: through 1.1.8

References

• https://plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/helpers/htmlhelper.php#L275
• https://plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/helpers/htmlhelper.php#L278
• https://plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/models/hostel.php#L266
• https://plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/views/options.php#L17
• https://www.wordfence.com/threat-intel/vulnerabilities/id/75693bd1-f022-47b9-b498-5ea1bda387e3?source=cve

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