A vulnerability was found in KB Affiliate Referral Script 1.0. It has been classified as critical. This affects an unknown part of the file /index.php. The manipulation of the argument username/password with the input 'or''=' leads to sql injection. The CWE definition for the vulnerability is CWE-89. The weakness was released 01/26/2017 by Ihsan Sencan as EDB-ID 41166 as Exploit (Exploit-DB). The advisory is shared at exploit-db.com. This vulnerability is uniquely identified as CVE-2017-20126. It is possible to initiate the attack remotely. Technical details are available. Furthermore, there is an exploit available. The exploit has been disclosed to the public and may be used. The price for an exploit might be around USD $0-$5k at the moment. MITRE ATT&CK project uses the attack technique T1505 for this issue. It is declared as proof-of-concept. The exploit is shared for download at exploit-db.com. We expect the 0-day to have been worth approximately $0-$5k. A possible mitigation has been published before and not just after the disclosure of the vulnerability.