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.
References5
- plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/helpers/ht…
- plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/helpers/ht…
- plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/models/hos…
- plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/views/opti…
- www.wordfence.com/threat-intel/vulnerabilities/id/75693bd1-f022…
Metrics
- CVSS 3.1
-
4.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 24 · as of 8 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.