CVE-2026-3228

MEDIUM

NextScripts Social Networks Auto-Poster <4.4.6 - XSS

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2026-3228. PoCs published by XiaomingX, NULL200OK.

AI-analyzed exploit summary This repository contains a functional Python exploit for CVE-2026-3228, a stored XSS vulnerability in the NextScripts WordPress plugin. The exploit includes authentication handling, session management, and payload injection via the [nxs_fbembed] shortcode.

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

This repository contains a functional Python exploit for CVE-2026-3228, a stored XSS vulnerability in the NextScripts WordPress plugin. The exploit includes authentication handling, session management, and payload injection via the [nxs_fbembed] shortcode.

Classification
Working Poc 95%
Attack Type
Xss
Complexity
Moderate
Reliability
Reliable
Target: NextScripts: Social Networks Auto-Poster <= 4.4.6
Auth required
Prerequisites: WordPress site with vulnerable plugin · Contributor-level credentials
devstral-2 · analyzed Mar 12, 2026 Full analysis →
nomisec WORKING POC 1 stars
by NULL200OK · poc
https://github.com/NULL200OK/CVE-2026-3228

This repository contains a functional Python exploit for CVE-2026-3228, a stored XSS vulnerability in the NextScripts WordPress plugin. The exploit includes authentication handling, vulnerability scanning, and payload injection capabilities.

Classification
Working Poc 95%
Attack Type
Xss
Complexity
Moderate
Reliability
Reliable
Target: NextScripts: Social Networks Auto-Poster <= 4.4.6
Auth required
Prerequisites: WordPress site with vulnerable plugin · Contributor-level credentials
devstral-2 · analyzed Mar 12, 2026 Full analysis →

References (4)

Core 4

Scores

CVSS v3 6.4
EPSS 0.0428
EPSS Percentile 89.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

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