XSS in Prasunsen Hostel
CVE-2026-1645
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (24.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/75693bd1-f022-47b9-b498-5ea1b…
- plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/views/options.php
- plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/models/hostel.php
- plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/helpers/htmlhelper.php
- plugins.trac.wordpress.org/browser/hostel/tags/1.1.6/helpers/htmlhelper.php
Frequently asked questions
- What is CVE-2026-1645?
- CVE-2026-1645 is a medium-severity vulnerability in Prasunsen Hostel, classified under Cross-site Scripting. CVSS score: 4.4/10. Published 2026-09-22.
- How severe is CVE-2026-1645?
- Medium severity. CVSS v3 base score is 4.4 out of 10.