CVE-2025-8966 is a SQL Injection vulnerability identified in version 1.0 of the itsourcecode Online Tour and Travel Management System. The vulnerability arises from improper sanitization of the 'tname' parameter in the /admin/operations/tax.php file. An attacker can remotely manipulate this parameter to inject malicious SQL code, potentially allowing unauthorized access to or modification of the backend database. The vulnerability does not require any authentication or user interaction, making it exploitable by any remote attacker with network access to the affected system. The CVSS 4.0 base score is 6.9 (medium severity), reflecting the network attack vector, low attack complexity, and no privileges or user interaction required. The impact on confidentiality, integrity, and availability is rated as low, indicating that while exploitation can lead to some data exposure or modification, it is not expected to cause full system compromise or denial of service. No known exploits are currently observed in the wild, and no official patches have been published yet. However, public disclosure of the exploit code increases the risk of exploitation by opportunistic attackers. The vulnerability specifically targets the tax management functionality within the administrative interface, which may contain sensitive financial or business data relevant to the tour and travel operations managed by the system.

For European organizations using the itsourcecode Online Tour and Travel Management System version 1.0, this vulnerability poses a risk of unauthorized data access or modification within their tour and travel management databases. Given the administrative nature of the affected component, attackers could potentially manipulate tax-related data, leading to financial discrepancies, regulatory non-compliance, or reputational damage. Although the impact is rated medium, exploitation could facilitate further attacks such as privilege escalation or lateral movement if combined with other vulnerabilities. The remote and unauthenticated nature of the attack vector increases the threat level, especially for organizations exposing the administrative interface to the internet without adequate network segmentation or access controls. European companies in the travel sector, including travel agencies, tour operators, and booking platforms, could face operational disruptions and data integrity issues. Additionally, exposure of personal or payment data stored in the system could trigger GDPR compliance concerns, leading to legal and financial penalties.

1. Immediate mitigation should include restricting access to the /admin/operations/tax.php endpoint through network-level controls such as VPNs, IP whitelisting, or firewall rules to limit exposure to trusted administrators only. 2. Implement input validation and parameterized queries or prepared statements in the affected code to sanitize the 'tname' parameter and prevent SQL injection. 3. Conduct a thorough code audit of the entire application to identify and remediate similar injection flaws in other modules. 4. Monitor logs for unusual or suspicious SQL query patterns targeting the tax.php endpoint to detect potential exploitation attempts. 5. If possible, isolate the database with strict access controls and least privilege principles to minimize damage in case of compromise. 6. Engage with the vendor or development community to obtain or develop an official patch and apply it promptly once available. 7. Educate administrative users on secure access practices and enforce strong authentication mechanisms to reduce risk exposure. 8. Consider deploying Web Application Firewalls (WAF) with custom rules to detect and block SQL injection payloads targeting this vulnerability until a patch is applied.