DBHcms v1.2.0 Vulnerability Analysis: Directory Traversal, XSS, Arbitrary File Read/Write (CVE-2020-19877-19890)

Critical Vulnerability Information 1. Multiple Types of Vulnerabilities DBHcms v1.2.0 contains the following multiple types of security vulnerabilities: Directory Traversal Vulnerability (CVE-2020-19877): Due to lack of directory control functionality. Sensitive Information Disclosure Vulnerability (CVE-2020-19878): Due to lack of secure access control. Stored XSS Vulnerability (CVE-2020-19879, CVE-2020-19880): Missing function. Reflected XSS Vulnerability (CVE-2020-19881): Missing security filters. CSRF Vulnerability (CVE-2020-19887): No CSRF protection mechanism in place. Unauthorized Operation Vulnerability (CVE-2020-19888): Lack of access control for . Arbitrary File Writing Vulnerability (CVE-2020-19889): In via parameters. Arbitrary File Reading Vulnerability (CVE-2020-19890): In via parameters. 2. Vulnerability Details and Testing Steps Directory Traversal Vulnerability: Exploitable when accessing specific directories, with no security filtering. XSS Vulnerabilities: Malicious scripts can be injected via parameters such as or . CSRF Attack: Unauthorized operations can be executed by crafting specific requests. File Operation Vulnerabilities: Arbitrary file reading and writing can be achieved via and parameters. 3. CVE Numbers and Impact Scope Each vulnerability has a corresponding CVE number, confirming it has been publicly identified and documented. The impact scope includes but is not limited to unauthorized access, information disclosure, cross-site scripting attacks, and file operations, posing serious threats to system security. 4. Testing Environment and Reproduction Steps Detailed setup instructions for the testing environment and reproduction steps are provided, facilitating verification and remediation by security researchers. Includes code screenshots and specific request examples, visually demonstrating the exploitation process. 5. Security Recommendations Remediation Suggestions: Apply the latest patches and ensure all inputs undergo strict security checks and filtering. Protective Measures: Implement access controls and CSRF protection mechanisms to prevent unauthorized operations. Regular Audits: Conduct regular security audits and code reviews to promptly identify and fix potential vulnerabilities.

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DBHcms v1.2.0 Vulnerability Analysis: Directory Traversal, XSS, Arbitrary File Read/Write (CVE-2020-19877-19890)

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