changedetection.io vulnerable to unauthenticated static path traversal_CVE-2026-25527

5.3 / 10

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

Basic Information

ID CVE-2026-25527

Source GitHub_M

Published Feb 19, 2026 at 14:18

Affected Product

Vendor dgtlmoon

Product changedetection.io

Version < 0.53.2

Affected Versions dgtlmoon changedetection.io < 0.53.2

CWE Classification

CWE-22

References

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    "published": "2026-02-19T14:18:18.933Z",
    "modified": "2026-02-19T14:18:18.933Z",
    "type": "cve",
    "title": "changedetection.io vulnerable to unauthenticated static path traversal",
    "source": "GitHub_M",
    "references": "https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-9jj8-v89v-xjvw\nhttps://github.com/dgtlmoon/changedetection.io/commit/9d38b4517364831889b5b0d7b3465fd060403fd4",
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