CVE-2025-52733 in ANON::form Embedded Secure Form Plugin
Summary
by MITRE • 06/20/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Anonform Ab ANON::form embedded secure form allows DOM-Based XSS. This issue affects ANON::form embedded secure form: from n/a through 1.7.
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Analysis
by VulDB Data Team • 06/20/2025
The vulnerability identified as CVE-2025-52733 represents a critical cross-site scripting flaw within the Anonform Ab ANON::form embedded secure form component, specifically manifesting as a DOM-based XSS vulnerability. This weakness occurs during the web page generation process where input data fails to be properly neutralized before being incorporated into dynamic content. The affected software version range spans from an unspecified starting point through version 1.7, indicating a potentially wide impact across multiple iterations of the embedded form system. The vulnerability is particularly concerning because it leverages the Document Object Model to execute malicious scripts, making it challenging to detect and mitigate through traditional input validation approaches.
The technical implementation of this flaw stems from improper handling of user-supplied data within the DOM manipulation functions of the embedded form component. When user input is directly processed and injected into the page structure without adequate sanitization or encoding, attackers can craft malicious payloads that exploit the browser's interpretation of the DOM. This creates an environment where malicious scripts can execute in the context of the victim's browser session, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The vulnerability classifies under CWE-79 which specifically addresses Cross-Site Scripting attacks, while the operational characteristics align with ATT&CK technique T1059.007 for script-based execution within web browsers.
The operational impact of this vulnerability extends beyond simple data theft or session manipulation. Attackers can exploit this DOM-based XSS to perform sophisticated attacks such as stealing cookies, modifying page content, or redirecting users to phishing sites that appear legitimate. The embedded nature of the form component means that successful exploitation could compromise multiple web applications that utilize this specific form framework, potentially affecting numerous websites or services that rely on the Anonform Ab ANON::form component. Additionally, the vulnerability's persistence across multiple versions suggests that organizations with legacy implementations may be at risk for extended periods without proper patching.
Organizations should implement comprehensive mitigation strategies that include immediate patching of affected versions, input validation at multiple layers, and proper output encoding of all dynamic content. The solution approach should incorporate Content Security Policy headers to restrict script execution, implement proper sanitization of all user inputs, and utilize secure coding practices that prevent direct DOM manipulation with untrusted data. Security teams should also consider implementing web application firewalls that can detect and block known XSS patterns, while monitoring for anomalous behavior that might indicate exploitation attempts. The vulnerability serves as a reminder of the critical importance of secure input handling in web applications and the necessity of maintaining up-to-date security practices to prevent exploitation of DOM-based vulnerabilities that can persist across multiple software versions.