CVE-2026-1449 identifies a SQL injection vulnerability in the Hisense TransTech Smart Bus Management System up to version 20260113. The vulnerability resides in the Page_Load function of the YZSoft/Forms/XForm/BM/BusComManagement/TireMng.aspx file, where the 'key' parameter is improperly sanitized. This allows an unauthenticated remote attacker to inject malicious SQL code, potentially compromising the backend database. The attack vector requires no user interaction or privileges, making exploitation straightforward over the network. The vulnerability can lead to unauthorized data disclosure, data manipulation, or denial of service by corrupting database queries. Despite early vendor notification, no patch or response has been issued, and a public exploit is available, increasing the risk of exploitation. The CVSS 4.0 base score of 6.9 reflects network attack vector, low complexity, no privileges or user interaction required, and low to limited impact on confidentiality, integrity, and availability. The lack of segmentation or security controls in many transit management systems could exacerbate the impact. This vulnerability threatens the integrity and availability of critical public transportation management data, potentially disrupting operations and compromising sensitive information.

For European organizations, particularly public transportation authorities and companies using Hisense TransTech Smart Bus Management System, this vulnerability poses a significant risk. Exploitation could lead to unauthorized access to sensitive operational data, manipulation of bus management parameters, or disruption of service availability. This could result in operational delays, safety risks, and loss of public trust. Additionally, data breaches could expose personal or operational data, leading to regulatory penalties under GDPR. The lack of vendor response and patch availability increases exposure time, raising the likelihood of exploitation. Given the critical nature of public transit infrastructure in Europe, successful attacks could have cascading effects on urban mobility and emergency response capabilities.

Until an official patch is released, European organizations should implement strict network segmentation to isolate the Smart Bus Management System from the internet and other critical networks. Employ web application firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting the 'key' parameter in the TireMng.aspx endpoint. Conduct thorough input validation and sanitization on all user-supplied data, especially parameters passed to SQL queries. Monitor logs for unusual database query patterns or repeated access attempts to the vulnerable endpoint. Restrict access to the management system to trusted IP addresses and enforce multi-factor authentication where possible. Engage with Hisense TransTech for updates and consider temporary alternative management solutions if feasible. Regularly back up databases to enable recovery in case of data corruption or loss. Finally, raise awareness among IT and security teams about this vulnerability and its exploitation methods.