CVE-2024-56509: dgtlmoon changedetection.io Path Traversal

Vulnerability summary

CVE-2024-56509 is a high (CVSS 8.6) Path Traversal vulnerability in dgtlmoon changedetection.io. EPSS estimates a 0.71% chance of exploitation in the next 30 days, higher than 53.1% of scored vulnerabilities.

Timeline

1. 27-12-2024
   PublishedVulnerability first disclosed.
2. 27-12-2024
   Last modifiedVulnerability information updated.

Description

changedetection.io is a free open source web page change detection, website watcher, restock monitor and notification service. Improper input validation in the application can allow attackers to perform local file read (LFR) or path traversal attacks. These vulnerabilities occur when user input is used to construct file paths without adequate sanitization or validation. For example, using file:../../../etc/passwd or file: ///etc/passwd can bypass weak validations and allow unauthorized access to sensitive files. Even though this has been addressed in previous patch, it is still insufficient. This vulnerability is fixed in 0.48.05.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
• CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.