CVE-2025-40679 in Isshue
Summary
by MITRE • 01/20/2026
HTML
Injection vulnerability in Isshue by Bdtask, consisting os an HTML injection due to a lack os proper validation of user input by sending a POST request to '/category_product_search', affecting the 'product_name' parameter.
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Analysis
by VulDB Data Team • 01/20/2026
This vulnerability represents a critical html injection flaw identified as cve-2025-40679 within the bdtask issue management system. The weakness manifests through inadequate input validation mechanisms that fail to properly sanitize user-supplied data when processing post requests to the /category_product_search endpoint. Specifically, the product_name parameter serves as the attack vector where malicious html content can be injected and subsequently executed within the application's response handling. The vulnerability stems from the application's failure to implement proper output encoding and input sanitization measures, creating an environment where crafted html payloads can be seamlessly integrated into the system's dynamic content generation processes.
The technical exploitation of this vulnerability follows a standard html injection attack pattern where an attacker crafts malicious input containing html tags or script elements that get processed and rendered within the application's user interface. When the application receives a post request with specially crafted product_name data, the lack of validation allows html content to bypass security controls and be directly incorporated into the response. This creates potential for cross-site scripting attacks where malicious code can execute in the context of other users' browsers, potentially leading to session hijacking, data theft, or further exploitation of the application's functionality. The vulnerability aligns with common weakness enumeration cwes 79 and 80, which specifically address cross-site scripting vulnerabilities arising from insufficient input validation and output encoding.
The operational impact of this vulnerability extends beyond simple html injection, as it can enable attackers to manipulate the application's user interface and potentially access sensitive user data. An attacker could leverage this weakness to inject malicious scripts that capture user credentials, redirect users to phishing sites, or exploit other browser-based vulnerabilities. The vulnerability affects the application's integrity and availability by allowing unauthorized modification of content that should remain controlled and secure. Depending on the application's architecture and user permissions, this could potentially escalate to privilege escalation or data breach scenarios, particularly if the affected system processes sensitive user information or maintains administrative functions.
Mitigation strategies should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's data handling processes. The recommended approach includes sanitizing all user input through proper html escaping and encoding before processing or displaying any content. The application should implement a whitelist-based validation approach for the product_name parameter, rejecting any input containing potentially malicious html tags or script elements. Additionally, implementing content security policies and proper header configurations can provide additional defense layers against script execution. The solution should also incorporate proper error handling and logging mechanisms to detect and respond to injection attempts. Security testing should include regular input validation checks and automated scanning for similar vulnerabilities across all application endpoints that handle user-supplied data, following established security frameworks such as owasp top ten and nist cybersecurity frameworks.