CVE-2020-35326 in inxedu
Summary
by MITRE • 01/18/2023
SQL Injection vulnerability in file /inxedu/demo_inxedu_open/src/main/resources/mybatis/inxedu/website/WebsiteImagesMapper.xml in inxedu 2.0.6 via the id value.
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Analysis
by VulDB Data Team • 04/05/2025
The vulnerability identified as CVE-2020-35326 represents a critical SQL injection flaw within the inxedu learning management system version 2.0.6. This vulnerability exists in the WebsiteImagesMapper.xml file which is part of the mybatis framework configuration, specifically when processing the id parameter value. The flaw allows malicious actors to manipulate database queries through improper input validation, potentially leading to unauthorized data access, modification, or deletion. The vulnerability is classified under CWE-89 which specifically addresses SQL injection weaknesses in software applications. This type of vulnerability falls squarely within the ATT&CK framework's T1190 technique for exploitation of remote services, as it enables attackers to leverage database access through web application interfaces.
The technical implementation of this vulnerability stems from the improper handling of user-supplied input within the mybatis XML mapper configuration. When the application processes requests containing an id parameter, the system fails to properly sanitize or parameterize the input before incorporating it into database queries. This allows attackers to inject malicious SQL code that can bypass authentication mechanisms, extract sensitive information from the database, or even execute destructive operations on the underlying data store. The vulnerability is particularly concerning because it resides in the core database interaction layer of the application, making it a prime target for exploitation. The specific file path /inxedu/demo_inxedu_open/src/main/resources/mybatis/inxedu/website/WebsiteImagesMapper.xml indicates this is a structured configuration file that defines database operations, where the id parameter is directly used in SQL statements without adequate input validation.
The operational impact of this vulnerability extends beyond simple data theft to encompass potential system compromise and business disruption. An attacker could leverage this vulnerability to gain unauthorized access to student records, course materials, or administrative data, potentially leading to privacy violations and regulatory compliance issues. The vulnerability affects the entire inxedu platform and could result in service degradation or complete system outages if exploited effectively. Organizations using this version of the software face significant risk of data breaches, particularly in educational environments where sensitive personal and academic information is stored. The attack surface is broad as any user who can submit an id parameter through the web interface could potentially exploit this vulnerability, making it particularly dangerous in multi-user environments. The vulnerability also aligns with ATT&CK technique T1071.004 for application layer protocol usage, as it exploits web application protocols to manipulate database interactions.
Mitigation strategies for CVE-2020-35326 should focus on immediate patching of the affected inxedu version to the latest secure release that addresses this SQL injection vulnerability. Organizations should implement proper input validation and parameterization techniques to ensure that all user-supplied data is properly sanitized before database interaction. The implementation of prepared statements and stored procedures can help prevent SQL injection attacks by separating SQL code from data. Network-level protections such as web application firewalls and database activity monitoring should be deployed to detect and prevent exploitation attempts. Additionally, organizations should conduct thorough security assessments of their database configurations and implement principle of least privilege access controls to limit potential damage from successful exploitation. Regular security testing and vulnerability scanning should be performed to identify similar issues in other components of the system, as SQL injection vulnerabilities often occur in multiple locations within complex applications. The remediation process should also include comprehensive monitoring and logging of database activities to detect any unauthorized access attempts that may have occurred before patching.