CVE-2026-2425 in hiWeb Migration Simple Plugin
Summary
by MITRE • 06/02/2026
The hiWeb Migration Simple plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'new_domain' parameter in all versions up to, and including, 2.0.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick an administrator into performing an action such as clicking on a link.
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Analysis
by VulDB Data Team • 06/03/2026
The hiWeb Migration Simple plugin for WordPress represents a critical security vulnerability through its susceptibility to reflected cross-site scripting attacks, specifically targeting the 'new_domain' parameter within versions up to and including 2.0.0.1. This vulnerability stems from inadequate input sanitization mechanisms and insufficient output escaping practices that fail to properly validate or encode user-supplied data before processing. The flaw exists at the intersection of web application security principles where user input flows directly into web page responses without proper security controls, creating an exploitable pathway for malicious actors to inject harmful scripts. The vulnerability operates under the CWE-79 classification as a reflected cross-site scripting issue, where the malicious payload is reflected off the web server back to the victim's browser, making it a prime target for social engineering attacks that rely on administrator trust and interaction.
The operational impact of this vulnerability extends beyond simple script execution, as it enables unauthenticated attackers to manipulate the plugin's functionality and potentially escalate privileges within the WordPress environment. When an administrator interacts with a maliciously crafted link containing the reflected payload, the script executes within the administrator's browser context, potentially leading to session hijacking, credential theft, or unauthorized modifications to the WordPress installation. The attack vector specifically exploits the trust relationship between administrators and the web application, requiring only successful social engineering to convince the administrator to click on the malicious link. This makes the vulnerability particularly dangerous in environments where administrators frequently click on links from external sources or where phishing attacks are common.
Security mitigations for this vulnerability must address both the immediate input validation gaps and the broader output encoding deficiencies within the plugin's codebase. Immediate remediation efforts should focus on implementing comprehensive input sanitization routines that validate the 'new_domain' parameter against expected formats and reject malformed input, while also ensuring that all output is properly escaped using context-appropriate encoding methods. The fix should align with established security practices such as those outlined in the OWASP Top Ten and the ATT&CK framework's defensive strategies for preventing cross-site scripting attacks. Organizations should also implement additional layers of protection including web application firewalls, regular security audits, and administrator education programs to reduce the risk of successful exploitation through social engineering techniques. The vulnerability demonstrates the critical importance of input validation and output encoding in preventing web application attacks, particularly in plugins that handle user-supplied data within administrative interfaces.