A vulnerability was found in BoyunCMS up to 1.4.20. It has been declared as critical. This vulnerability affects unknown code of the file application/update/controller/Server.php. The manipulation of the argument phone leads to sql injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.