CVE-2026-25527 – changedetection.io vulnerable to unauthenticated static path traversal

CVE ID : CVE-2026-25527

Published : Feb. 19, 2026, 2:18 p.m. | 42 minutes ago

Description : changedetection.io is a free open source web page change detection tool. In versions prior to 0.53.2, the `/static//` route accepts `group=”..”`, which causes `send_from_directory(“static/..”, filename)` to execute. This moves the base directory up to `/app/changedetectionio`, enabling unauthenticated local file read of application source files (e.g., `flask_app.py`). Version 0.53.2 fixes the issue.

Severity: 0.0 | NA

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