Input Validation Flaw in Change Detection Service Exposes Sensitive Data

CVE-2024-56509

What is CVE-2024-56509?

ChangeDetection.io, a popular open-source web page change detection and monitoring service, suffers from an input validation vulnerability that can be exploited to execute local file read (LFR) and path traversal attacks. This issue arises when the application inadequately sanitizes user input used to create file paths. Attackers can exploit this flaw by using specially crafted inputs like 'file:../../../etc/passwd' or 'file:///etc/passwd', which can circumvent weak validations and lead to unauthorized access to sensitive system files. Although fixes have been implemented in version 0.48.05, prior versions remain susceptible to exploitation, posing significant security risks.

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