CVE-2025-24557 in PlainInventory Plugin
Summary
by MITRE • 02/03/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in plainware.com PlainInventory allows Reflected XSS. This issue affects PlainInventory: from n/a through 3.1.5.
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Analysis
by VulDB Data Team • 02/06/2025
This cross-site scripting vulnerability exists within the PlainInventory web application developed by plainware.com, representing a critical security flaw that enables attackers to inject malicious scripts into web pages viewed by users. The vulnerability specifically manifests as a reflected cross-site scripting issue, where malicious input is immediately reflected back to users without proper sanitization or encoding mechanisms. The flaw affects all versions of PlainInventory from the initial release through version 3.1.5, indicating this represents a longstanding security gap that has persisted across multiple iterations of the software. According to CWE-79, this vulnerability falls under the category of Cross-Site Scripting, which is classified as a serious weakness in web application security that allows attackers to execute scripts in the context of other users' browsers. The reflected nature of this vulnerability means that malicious payloads are typically delivered through crafted URLs or user input fields that are immediately reflected back to the user's browser without adequate validation or output encoding.
The technical implementation of this vulnerability occurs when the PlainInventory application processes user input through web forms, URL parameters, or other input vectors without proper sanitization before rendering the content in web pages. When users visit maliciously crafted URLs or interact with vulnerable input fields, the application fails to neutralize potentially dangerous characters or script tags that could be interpreted as executable code by web browsers. This creates an environment where attackers can inject malicious JavaScript code that executes in the victim's browser context, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of the user. The vulnerability's impact is amplified because it allows for immediate execution of malicious code without requiring any persistent storage or complex exploitation techniques, making it particularly dangerous for web applications that handle sensitive user data or administrative functions.
The operational impact of this reflected XSS vulnerability extends beyond simple script execution, as it can enable sophisticated attack vectors that compromise user sessions and potentially escalate to full system compromise. Attackers can leverage this vulnerability to steal session cookies, redirect users to malicious sites, deface web pages, or perform actions that appear to originate from legitimate users within the application. The vulnerability's persistence across multiple versions suggests that the underlying input validation mechanisms were not properly implemented or maintained throughout the software development lifecycle. From an attacker's perspective, this vulnerability represents a low-hanging fruit that requires minimal technical expertise to exploit, making it particularly attractive for automated attack campaigns. The reflected nature means that successful exploitation can occur through social engineering techniques such as phishing emails containing malicious links, or by compromising web application interfaces that users trust.
Mitigation strategies for this vulnerability must address both the immediate security gap and prevent future occurrences through improved development practices and security controls. Organizations should implement comprehensive input validation and output encoding mechanisms that sanitize all user-provided data before it is rendered in web pages, following established security guidelines such as those outlined in the OWASP Top Ten and the CWE guidelines for XSS prevention. The application should employ proper context-aware encoding for different output contexts including HTML, JavaScript, and URL contexts, ensuring that special characters are appropriately escaped or encoded to prevent interpretation as executable code. Additionally, implementing Content Security Policy (CSP) headers can provide an additional layer of protection against XSS attacks by restricting the sources from which scripts can be loaded and executed. Regular security testing including automated scanning and manual penetration testing should be conducted to identify and remediate similar vulnerabilities throughout the application's lifecycle, while also ensuring that all input validation and sanitization mechanisms are properly implemented and maintained across all versions of the software. The vulnerability's classification under CWE-79 and its potential for enabling further attacks aligns with ATT&CK technique T1059.007 for scripting and T1531 for credential access, emphasizing the need for comprehensive defensive measures.