CVE-2018-19223 in LAOBANCMS
Summary
by MITRE
An issue was discovered in LAOBANCMS 2.0. It allows XSS via the first input field to the admin/type.php?id=1 URI.
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Analysis
by VulDB Data Team • 04/11/2020
The vulnerability identified as CVE-2018-19223 represents a critical cross-site scripting flaw within LAOBANCMS version 2.0, specifically affecting the administrative interface through the type.php component. This vulnerability resides in the handling of user input parameters within the administrative URI structure, creating a pathway for malicious actors to inject arbitrary script code into the application's response. The flaw manifests when an attacker exploits the first input field of the admin/type.php?id=1 endpoint, allowing unauthorized code execution within the context of a victim's browser session.
The technical nature of this vulnerability aligns with CWE-79, which defines Cross-Site Scripting as a weakness where an application fails to properly validate or escape user-provided data before incorporating it into dynamic content. This particular implementation flaw demonstrates a classic reflected XSS attack vector, where malicious input is immediately reflected back to the user without adequate sanitization or output encoding. The vulnerability affects the administrative interface specifically, meaning that successful exploitation could potentially allow an attacker to hijack administrator sessions, execute unauthorized administrative commands, or gain elevated privileges within the CMS environment.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking, as it provides attackers with a foothold within the administrative domain of the CMS. Given that the vulnerability exists in the type.php endpoint, which likely manages content types or categories within the CMS, an attacker could potentially manipulate the administrative interface to redirect users to malicious sites, steal sensitive administrative credentials, or modify content in ways that could compromise the entire website. This vulnerability represents a significant risk to organizations using LAOBANCMS 2.0, as it could lead to complete compromise of the administrative functions and potentially the entire web application.
Mitigation strategies for CVE-2018-19223 should focus on implementing proper input validation and output encoding mechanisms throughout the application. The recommended approach includes enforcing strict sanitization of all user inputs before processing, implementing Content Security Policy headers to limit script execution, and ensuring that all dynamic content generated by the application properly escapes special characters. Additionally, organizations should consider implementing web application firewalls to detect and block malicious payloads attempting to exploit this vulnerability. The remediation process should involve updating to a patched version of LAOBANCMS 2.0 or implementing compensating controls such as input filtering and output encoding at the application level, as outlined in the ATT&CK framework's mitigation strategies for web application vulnerabilities. Regular security assessments and input validation testing should be conducted to prevent similar issues from arising in future versions of the application.