CVE-2026-15537 [HIGH] – A security flaw has been discovered in SourceCodester Online Book Store System 1.0. This v

A security flaw has been discovered in SourceCodester Online Book Store System 1.0. This vulnerability affects unknown code of the file admin/login.php. The manipulation of the argument Username results in sql injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.