CVE-2026-31843 PUBLISHED

The goodoneuz/pay-uz Laravel package (<= 2.2.24) contains a critical vulnerability in the /payment/api/editable/update endpoint that allows unauthenticated attackers to overwrite existing PHP payment hook files. The endpoint is exposed via Route::any() without authentication middleware, enabling remote access without credentials. User-controlled input is directly written into executable PHP files using file_put_contents(). These files are later executed via require() during normal payment processing workflows, resulting in remote code execution under default application behavior. The payment secret token mentioned by the vendor is unrelated to this endpoint and does not mitigate the vulnerability.

• https://github.com/shaxzodbek-uzb/pay-uz
• https://github.com/goodoneuz/pay-uz/blob/master/src/routes/web.php
• https://github.com/goodoneuz/pay-uz/blob/master/src/Http/Controllers/ApiController.php
• https://packagist.org/packages/goodoneuz/pay-uz

• CWE-284 Improper Access Control leading to unauthorized modification of executable application files CWE

• An unauthenticated attacker can modify executable PHP payment hook files, resulting in injection of malicious PHP code. When these modified files are executed during payment processing via require(), this leads to remote code execution with web server privileges and full application compromise.