changedetection.io is a free open source web page change detection tool. In versions prior to 0.53.2, the `/static/<group>/<filename>` 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.
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Affected Vendors & Products
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Fixes
Solution
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Workaround
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References
History
Thu, 19 Feb 2026 14:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | changedetection.io is a free open source web page change detection tool. In versions prior to 0.53.2, the `/static/<group>/<filename>` 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. | |
| Title | changedetection.io vulnerable to unauthenticated static path traversal | |
| Weaknesses | CWE-22 | |
| References |
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| Metrics |
cvssV3_1
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Projects
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-02-19T14:18:18.933Z
Reserved: 2026-02-02T19:59:47.373Z
Link: CVE-2026-25527
Vulnrichment
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NVD
Status : Received
Published: 2026-02-19T15:16:11.947
Modified: 2026-02-19T15:16:11.947
Link: CVE-2026-25527
Redhat
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OpenCVE Enrichment
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Weaknesses