Description

The WP Online Users Stats plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.0. This is due to missing nonce validation within the hk_dataset_results() function. This makes it possible for unauthenticated attackers to inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Classification

CVE ID: CVE-2025-4966

CVSS Base Severity: MEDIUM

CVSS Base Score: 6.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected Products

Vendor: hk1993

Product: WP Online Users Stats

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.01% (probability of being exploited)

EPSS Percentile: 1.06% (scored less or equal to compared to others)

EPSS Date: 2025-06-06 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-4966
https://www.wordfence.com/threat-intel/vulnerabilities/id/a41226ab-9732-4de2-843b-284c011c9224?source=cve
https://wordpress.org/plugins/wp-online-users-stats/#developers
https://plugins.trac.wordpress.org/browser/wp-online-users-stats/trunk/admin/class-wp-online-users-stats-admin.php#L118

Timeline