CVE-2024-12524: Clinked Client Portal <= 1.9 - Authenticated (Contributor+) Stored Cross-Site Scripting
Description
The Clinked Client Portal plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'clinked-login-button' shortcode in all versions up to, and including, 1.9 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Classification
CVE ID: CVE-2024-12524
CVSS Base Severity: MEDIUM
CVSS Base Score: 6.4
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Affected Products
Vendor: clinked
Product: Clinked Client Portal
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.05% (probability of being exploited)
EPSS Percentile: 24.49% (scored less or equal to compared to others)
EPSS Date: 2025-02-28 (when was this score calculated)
References
https://www.wordfence.com/threat-intel/vulnerabilities/id/417b9dfe-2571-4816-af55-c7cb7dfa62c6?source=cvehttps://plugins.trac.wordpress.org/browser/clinked-client-portal/trunk/clinked-wordpress-plugin.php#L87
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3229331%40clinked-client-portal&new=3229331%40clinked-client-portal&sfp_email=&sfph_mail=