Nicepage 4160 Exploit

Users must update the Nicepage plugin to version 2.15.2 or higher immediately.

However, user discussions around late 2022/early 2023 mentioned security concerns, which generally focus on the following areas rather than a singular published 4160 exploit code: Key Security Concerns & Findings

That said, the lack of a formal CVE (Common Vulnerabilities and Exposure) entry for "Nicepage 4160" does not mean that sites built with that version are automatically secure. Several significant security issues have been associated with Nicepage in general, and these affect all versions up to and including 4.16.

Understanding the Nicepage 4.16.0 Exploit: Risks, Mechanics, and Mitigation nicepage 4160 exploit

If you are researching CVE-2023-4160, here are the technical details for that specific exploit: Stored Cross-Site Scripting (XSS).

Curiosity made her reckless. She pulled an old backup — a prototype site she’d abandoned months before — and spun up a local server. NicePage, version the same as the one referenced, ran in a container, fresh and unpolished. Maya fed it the crafted template from the forum and watched the logs like someone watching a heart monitor.

and contains known flaws such as cross‑site scripting (XSS) and prototype pollution vulnerabilities. Attackers can exploit these weaknesses to inject malicious scripts into web pages, steal session cookies, or redirect users to phishing sites. When Nicepage includes this vulnerable library in the code it generates for production websites, it effectively introduces those risks into every site built with the software. Users must update the Nicepage plugin to version 2

Due to insufficient file validation during the import process, this vulnerability allows a remote attacker to upload malicious PHP files (webshells), leading to Remote Code Execution (RCE). This effectively grants the attacker full control over the WordPress installation and potentially the underlying server.

: Relying on deprecated code libraries or insecure default handling within contact forms.

The Nicepage software utilizes the older jQuery v1.9.1 library. According to a forum member, an audit of their site by Google Chrome's developer tools flagged this as an issue because this version has known security flaws. The potential risks include Cross-Site Scripting (XSS) vulnerabilities in jQuery versions prior to 3.0.0, which could enable attackers to steal session tokens, cookies, or other sensitive information. Understanding the Nicepage 4

Automated output scripts inadvertently map and expose path patterns like /wp-admin or explicit back-end system locations to unauthenticated HTTP requests.

For Apache servers, deploy a .htaccess profile directly inside the /wp-content/uploads/ or media output paths: Deny from all Use code with caution.

Ensure you are running the latest version. As of early 2026, Nicepage is on version 8.4. Follow WP Best Practices:

Any site created with Nicepage version 4.16 (or earlier) that includes the default jQuery library is potentially vulnerable to client‑side attacks. The recommended mitigation is to manually replace the jQuery file with a more recent, patched version (such as jQuery 3.6.x or later) in your exported HTML or theme files.

Based on the evidence gathered, here is a balanced assessment of Nicepage's security.