This vulnerability in MetaCRM up to version 6.4.0 arises from improper handling of the sql argument in the Statement.executeUpdate method within the sql.jsp file of the Interface component. An attacker can remotely supply crafted input to execute arbitrary SQL commands, constituting an SQL injection flaw. The vulnerability has a CVSS 4.0 base score of 6.9, indicating medium severity. The vendor was notified but has not issued any advisory or patch. No known exploits in the wild have been reported to date.

Successful exploitation could allow remote attackers to execute arbitrary SQL commands on the backend database, potentially leading to unauthorized data modification or disclosure. However, the CVSS vector indicates low to limited impact on confidentiality, integrity, and availability. No evidence of active exploitation has been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or released a fix, users should consider implementing application-level input validation and SQL query parameterization as temporary mitigations. Monitor for any updates from the vendor regarding official patches or workarounds.