This vulnerability in MyBookTable Bookstore (versions <= 3.6.0) involves improper neutralization of input during web page generation, leading to stored cross-site scripting (XSS). This allows attackers to inject malicious scripts that persist on the application and execute when viewed by other users. The issue is documented as CVE-2026-39604 but lacks detailed technical or remediation information. The product is not a cloud service, and no patch or official fix information is currently available.

Successful exploitation could allow an attacker to execute arbitrary scripts in the context of users' browsers, potentially leading to session hijacking, defacement, or other client-side attacks. However, no known exploits are reported in the wild, and the lack of vendor advisory means the exact impact scope and remediation status remain unclear.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider applying input validation and output encoding controls where possible to mitigate stored XSS risks. Monitor vendor channels for updates and patches addressing this vulnerability.