CVE-2026-13504 in Project Management System
Summary
by MITRE • 06/28/2026
A vulnerability has been found in code-projects Project Management System 1.0. This vulnerability affects unknown code of the file /mail.php of the component Mail Compose Page. Such manipulation leads to cross site scripting. The attack may be performed from remote. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 07/04/2026
This vulnerability resides within the code-projects Project Management System version 1.0, specifically targeting the mail.php file within the Mail Compose Page component. The identified weakness creates a cross-site scripting vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users. This type of vulnerability represents a critical security flaw that can compromise user sessions and potentially lead to unauthorized access to sensitive project data or system resources.
The technical nature of this vulnerability stems from inadequate input validation and output encoding within the mail.php script. When users compose emails through the project management interface, the application fails to properly sanitize user-supplied input before rendering it in the web page context. This insufficient sanitization creates an opening for attackers to inject malicious javascript code that executes in the victim's browser when they view the compromised email content. The vulnerability operates at the application layer and can be exploited through web-based attack vectors.
From an operational perspective, this cross-site scripting vulnerability poses significant risks to organizations using the project management system. Remote exploitation means attackers can potentially compromise users without requiring physical access or local network presence. The disclosed exploit availability increases the threat surface significantly as malicious actors can immediately leverage this weakness against vulnerable systems. Users who receive compromised emails could have their session cookies stolen, leading to unauthorized access to project data, or be redirected to phishing sites that further compromise their security posture.
The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws in web applications. This weakness falls under the broader category of injection vulnerabilities and can be mapped to ATT&CK technique T1566.001 for initial access through spearphishing with attachments or links. The impact extends beyond simple script execution as it can enable more sophisticated attacks including credential theft, session hijacking, and data exfiltration from the project management environment.
Organizations should immediately implement input validation measures to sanitize all user inputs before rendering them in web contexts. This includes implementing proper output encoding mechanisms that prevent malicious scripts from executing when email content is displayed. The recommended mitigations include applying the latest security patches from code-projects if available, implementing content security policies to restrict script execution, and conducting thorough input validation throughout the application's mail handling components. Additionally, network-based solutions such as web application firewalls can provide additional protection layers while permanent fixes are implemented.
The vulnerability demonstrates the critical importance of secure coding practices in web applications, particularly when handling user-generated content. Organizations should conduct comprehensive security assessments of their project management systems and related components to identify similar weaknesses that could be exploited by threat actors. Regular security testing including dynamic application security testing and manual penetration testing helps ensure that such vulnerabilities are identified and remediated before they can be exploited in real-world scenarios.