MetInfo through 5.3.17 accepts the same CAPTCHA response for 120 seconds, which makes it easier for remote attackers to bypass intended challenge requirements by modifying the client-server data stream, as demonstrated by the login/findpass page.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11717
Reference (s):
- https://lncken.cn/?p=343