CVE-2026-2682 identifies a SQL injection vulnerability in the Tsinghua Unigroup Electronic Archives System up to version 3.2.210802(62532). The vulnerability resides in an unspecified function accessed via the /mine/PublicReport/prinReport.html endpoint, specifically through the 'comid' parameter. This parameter is susceptible to malicious input that can alter the intended SQL query logic, enabling attackers to execute arbitrary SQL commands remotely. The vulnerability requires no user interaction but does require low-level privileges (PR:L) to exploit, indicating that an attacker must have some authenticated access, though the complexity of privilege escalation is low. The CVSS 4.0 score of 5.3 reflects a medium severity, considering the attack vector is network-based with low attack complexity and no user interaction, but with limited impact on confidentiality, integrity, and availability. The vendor has been contacted but has not issued a patch or mitigation guidance, and no public exploits have been observed yet. This vulnerability could allow attackers to extract sensitive data, modify database contents, or disrupt service availability, depending on the database permissions and system configuration. Given the nature of electronic archives, the risk to sensitive or critical data is significant. Organizations using this product should conduct immediate security assessments and consider compensating controls until a patch is available.

The SQL injection vulnerability could allow attackers to remotely execute arbitrary SQL commands on the backend database of the Electronic Archives System. This can lead to unauthorized data disclosure, data modification, or deletion, potentially compromising the confidentiality, integrity, and availability of archived electronic records. For organizations relying on this system for critical document storage, this could result in data breaches, loss of data integrity, and operational disruptions. The requirement for low-level privileges limits the attack surface somewhat, but insider threats or compromised credentials could enable exploitation. The lack of vendor response and patch availability increases the risk of exploitation over time. If exploited, attackers could gain access to sensitive archival data, which may include intellectual property, personal information, or other critical records, potentially leading to regulatory penalties, reputational damage, and operational impact.

1. Immediately audit and monitor access logs for suspicious activity related to the /mine/PublicReport/prinReport.html endpoint and the 'comid' parameter. 2. Restrict access to the Electronic Archives System to trusted networks and users with strict authentication and authorization controls to reduce the risk of exploitation by unauthorized users. 3. Implement Web Application Firewall (WAF) rules to detect and block SQL injection payloads targeting the vulnerable parameter. 4. Conduct a thorough code review and input validation on all parameters, especially 'comid', to enforce strict type and format checks, escaping or parameterizing SQL queries to prevent injection. 5. If possible, isolate the affected system from critical networks until a patch or official fix is released. 6. Regularly back up the database and verify backup integrity to enable recovery in case of data tampering or loss. 7. Engage with Tsinghua Unigroup for updates or patches and monitor vulnerability databases for any new developments or exploit disclosures. 8. Consider deploying database activity monitoring tools to detect anomalous queries indicative of SQL injection attempts.