CVE-2026-3228

MEDIUM

NextScripts Social Networks Auto-Poster <4.4.6 - XSS

Title source: llm

Description

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.

Exploits (2)

github WORKING POC 10 stars

by XiaomingX · pythonpoc

https://github.com/XiaomingX/data-cve-poc-py-v1/tree/main/2026/CVE-2026-3228

View Code ZIP pw:eip

nomisec WORKING POC 1 stars

by NULL200OK · poc

https://github.com/NULL200OK/CVE-2026-3228

View Code ZIP pw:eip

References (4)

[Product] https://plugins.trac.wordpress.org/browser/social-networks-auto-poster-facebook-twitter-g/tags/4.4.6/inc-cl/fb.php#L581

[Product] https://plugins.trac.wordpress.org/browser/social-networks-auto-poster-facebook-twitter-g/trunk/inc-cl/fb.php#L581

[Product] https://plugins.trac.wordpress.org/changeset/3470727/social-networks-auto-poster-facebook-twitter-g/trunk/inc-cl/fb.php

[Third Party Advisory] https://www.wordfence.com/threat-intel/vulnerabilities/id/923c51ba-0ec2-4e32-a86e-404f3fe2ac7c?source=cve

Scores

CVSS v3 6.4

EPSS 0.0005

EPSS Percentile 16.7%

Attack Vector NETWORK

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

Details

CWE

CWE-79

Status published

Products (1)

nextscripts/NextScripts: Social Networks Auto-Poster < 4.4.6

Published Mar 10, 2026

Tracked Since Mar 11, 2026