CVE-2023-39053

CVE-2023-39053 describes an information leak vulnerability in Hattoriya v13.6.1, specifically affecting the lycorp line_mini_app. This flaw allows an unauthenticated attacker to obtain the channel access token, enabling them to send unauthorized messages. Rated as High severity with a CVSS score of 7.5, the vulnerability is easily exploitable over the network with low attack complexity, leading to a high confidentiality impact. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage.