CVE-2025-3750: Network Posts Extended <= 7.7.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via post_height Parameter
Description
The Network Posts Extended plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘post_height’ parameter in all versions up to, and including, 7.7.1 due to insufficient input sanitization and output escaping. 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-2025-3750
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
Problem Types
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Affected Products
Vendor: johnzenausa
Product: Network Posts Extended
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.03% (probability of being exploited)
EPSS Percentile: 7.55% (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-2025-3750https://www.wordfence.com/threat-intel/vulnerabilities/id/64a15397-0bd6-4be9-90e3-6cb1f56394ad?source=cve
https://plugins.trac.wordpress.org/browser/network-posts-extended/trunk/network-posts-extended.php#L663
https://wordpress.org/plugins/network-posts-extended/#developers