CVE-2026-3228: The NextScripts: Social Networks Auto-Poster plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `[nxs_fbembed]` shortcode in all…

PriorityP338medium6.4CVSS 3.1

AVNACLPRLUINSCCLILAN

EPSS

4.28%

89.9th percentile

The NextScripts: Social Networks Auto-Poster plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `[nxs_fbembed]` shortcode in all versions up to, and including, 4.4.6. This is due to insufficient input sanitization and output escaping on the `snapFB` post meta value. 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.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
nextscripts	nextscripts_social_networks_auto-poster	<= 4.4.6	—

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