CVE-2025-51741 affects Veal98 Echo Open-Source Community System versions 2.2 and 2.3. It allows an unauthenticated attacker to abuse the /sendEmailCodeForResetPwd endpoint to cause the server to send email verification messages to arbitrary users. This can result in resource exhaustion leading to denial of service on the server or impact on downstream users. The vulnerability has a CVSS 3.1 base score of 7.5, indicating high severity, with network attack vector, low attack complexity, no privileges or user interaction required, and impacts availability but not confidentiality or integrity.

The vulnerability can be exploited remotely without authentication to cause denial of service by overwhelming the server or affecting downstream users through unsolicited email verification messages. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild at this time.

No official patch or remediation is currently available for this vulnerability. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, consider implementing rate limiting or other controls on the /sendEmailCodeForResetPwd endpoint to mitigate potential abuse.