A vulnerability classified as critical was found in Home Clean Services Management System 1.0. This vulnerability affects unknown code of the file login.php. The manipulation of the argument email with the input admin%'/**/AND/**/(SELECT/**/5383/**/FROM/**/(SELECT(SLEEP(2)))JPeh)/**/AND/**/'frfq%'='frfq leads to sql injection. Using CWE to declare the problem leads to CWE-89. The weakness was shared 05/24/2022. The advisory is shared for download at github.com. This vulnerability was named CVE-2022-1839. The attack can be initiated remotely. Technical details are available. Furthermore, there is an exploit available. The exploit has been disclosed to the public and may be used. The current price for an exploit might be approx. USD $0-$5k at the moment. The MITRE ATT&CK project declares the attack technique as T1505. It is declared as proof-of-concept. It is possible to download the exploit at github.com. As 0-day the estimated underground price was around $0-$5k. A possible mitigation has been published before and not just after the disclosure of the vulnerability.