CVE Catalog

CVE-2025-5085

MediumCVSS 5.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.20%

10th percentile - higher than 10% of all known CVEs

Summary

The WP Nano AD plugin for WordPress up to version 1.31 is vulnerable to Stored Cross-Site Scripting via the 'blogrole_link' parameter. Insufficient input sanitization and output escaping allow authenticated attackers with administrator-level access to inject scripts that execute on every page visit. This affects only multi-site installations and installations where unfiltered_html is disabled.

Risk Assessment

An attacker administrator can inject malicious scripts that execute on all users' pages, potentially leading to data theft or account takeover.

Recommendation

Update the WP Nano AD plugin to the latest version. In multi-site installations, restrict administrator privileges and enable unfiltered_html only for trusted users.

Related vulnerabilities

Original NVD description (English source)

The WP Nano AD plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘blogrole_link’ parameter in all versions up to, and including, 1.31 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 data from NVD (NIST) · CISA KEV · EPSS