CVE Catalog

CVE-2025-9856

MediumCVSS 6.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.30%

21th percentile - higher than 21% of all known CVEs

Summary

The Popup Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'sg_popup' shortcode in all versions up to and including 4.4.1 due to insufficient input sanitization and output escaping on user supplied attributes. This allows authenticated attackers with contributor-level access and above to inject arbitrary web scripts that execute when a user accesses an injected page.

Risk Assessment

The risk includes the possibility of executing malicious scripts in the user's browser, which could lead to session theft, account takeover, or other attacks.

Recommendation

It is recommended to update the plugin to the latest version and thoroughly validate user-supplied content.

Related vulnerabilities

Original NVD description (English source)

The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'sg_popup' shortcode in all versions up to, and including, 4.4.1 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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS