files = 'svg_file': ('malicious.svg', payload_svg, 'image/svg+xml') data = 'action': 'nicepage_upload_svg'
A: Yes, if the WordPress site is accessible over HTTP/HTTPS from the attacker’s network.
Within days, the PoC was mirrored to Exploit-DB (EDB-ID: 58923) and GitHub under multiple repositories with names like nicepage-exploit and CVE-2026-1234 (a placeholder CVE that, as of this writing, has not been officially assigned). nicepage 4.16.0 exploit
Version , released in late 2025, was a significant update that introduced dynamic content widgets, improved SVG handling, and a new "remote publish" protocol. The Origin of the 'Nicepage 4.16.0 Exploit' Claims The first mentions of the exploit appeared in early February 2026 on a Russian-language exploit forum. A threat actor using the handle 0xDr4k0 posted a thread titled: "Nicepage 4.16.0 – Unauthenticated RCE via SVG upload and plugin sync." The post included a proof-of-concept (PoC) Python script claiming to achieve remote code execution (RCE) on WordPress sites using the Nicepage plugin version 4.16.0.
But what does this exploit actually do? Is it a critical zero-day that compromises millions of websites, or is it a mislabeled vulnerability with limited scope? This article dissects the technical realities of the Nicepage 4.16.0 exploit, its potential impact on production sites, and step-by-step mitigation strategies. Before diving into the exploit, it is essential to understand the software architecture. Nicepage is a desktop website builder available for Windows, Mac, and Linux. It also offers a companion plugin for WordPress and a theme for Joomla. The software works on a "save locally, publish remotely" model. Users design websites locally (creating .nicepage files) and then export them as HTML/CSS or synchronize them with a CMS via an API. files = 'svg_file': ('malicious
response = requests.post(target_url, data=data, files=files) print(response.text)
| Vector | Score | Severity | |--------|-------|-----------| | Unauthenticated SVG XSS | 6.1 (Medium) | Network low complexity, user interaction required | | CSRF Template Overwrite | 7.1 (High) | Confidentiality impact low, integrity high | | Auth'd Path Traversal | 7.5 (High) | High confidentiality impact | The Origin of the 'Nicepage 4
import requests target_url = "https://target-site.com/wp-admin/admin-ajax.php" payload_svg = '''<svg xmlns="http://www.w3.org/2000/svg" onload="alert('XSS')"> <script>alert('Nicepage 4.16.0 Exploit')</script> </svg>'''