CVE-2026-1062 is a Server-Side Request Forgery vulnerability affecting xiweicheng TMS software versions from 2.0 through 2.28.0. The vulnerability resides in the Summary function implemented in the source file src/main/java/com/lhjz/portal/util/HtmlUtil.java. Specifically, the function improperly handles the 'url' parameter, allowing an attacker to supply a crafted URL that the server then uses to initiate HTTP requests on behalf of the attacker. This SSRF flaw enables remote attackers to coerce the server into making arbitrary requests to internal or external systems, potentially bypassing network access controls and firewalls. The vulnerability requires no authentication or user interaction, increasing its exploitability. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:L), no user interaction (UI:N), and low impact on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). While no active exploitation has been reported, a public exploit is available, raising the risk of future attacks. The vulnerability can be leveraged for reconnaissance, accessing internal services, or pivoting within the network, posing a significant risk to affected deployments. No official patches have been linked yet, so mitigation may require configuration changes or network-level controls until updates are released.

For European organizations, exploitation of CVE-2026-1062 could lead to unauthorized internal network access, allowing attackers to bypass perimeter defenses and access sensitive internal resources. This may result in exposure of confidential data, disruption of internal services, or further lateral movement within the network. Organizations relying on xiweicheng TMS for critical operations may face operational disruptions or data breaches. The medium severity rating reflects moderate impact potential; however, the ease of remote exploitation without authentication increases risk. In sectors such as finance, healthcare, and government within Europe, where data protection regulations like GDPR impose strict requirements, such a vulnerability could lead to regulatory penalties and reputational damage if exploited. Additionally, the ability to perform SSRF attacks may facilitate more complex multi-stage attacks, including server compromise or data exfiltration.

European organizations should immediately inventory their xiweicheng TMS deployments to identify affected versions (2.0 through 2.28.0). Until official patches are released, implement strict input validation and sanitization on the 'url' parameter within the Summary function if source code modification is feasible. Network-level mitigations include restricting outbound HTTP requests from the TMS server to only trusted destinations using firewall rules or proxy controls. Employ web application firewalls (WAFs) with custom rules to detect and block suspicious SSRF payloads targeting the vulnerable endpoint. Monitor logs for unusual outbound requests originating from the TMS server. Additionally, segment the network to limit the TMS server’s access to sensitive internal resources. Regularly check for vendor updates or security advisories to apply patches promptly once available. Conduct penetration testing focused on SSRF to validate the effectiveness of mitigations.