CVE-2026-95273: dgtlmoon changedetection.io path traversal in visual_selector_data

CVE-2026-95273 · Severity: medium · CVSS 4.3 · Published 2026-09-22

changedetection.io is a web monitoring tool that tracks changes to websites. A path traversal vulnerability in its visual selector feature allows an attacker to read arbitrary files from the server by manipulating a filename parameter, potentially exposing sensitive watch data and configuration files.

Technologies: Dgtlmoon Changedetection.Io. Vendors: Dgtlmoon.

Quick answers

Is CVE-2026-95273 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-95273 being exploited in the wild.
How severe is CVE-2026-95273?
Medium severity, with a CVSS score of 4.3, published 22 September 2026.
Which products and versions are affected?
Dgtlmoon Changedetection.Io up to 0.60.7.
Is there a fix for CVE-2026-95273?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-95273 attacked?
It is attacked over the network.
Am I affected by CVE-2026-95273?
Check whether you run Dgtlmoon Changedetection.Io at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The static_content() function in changedetectionio/flask_app.py fails to sanitize the filename route parameter before passing it to os.path.join() to construct a directory path. When group=visual_selector_data, an attacker can inject path traversal sequences (../) to escape the datastore directory and read elements.deflate files from other watches or system directories. The vulnerability violates Werkzeug's send_from_directory contract which explicitly warns the directory parameter must not be client-supplied.

Affected products

  • dgtlmoon changedetection.io up to 0.60.7

Timeline

  • 2026-09-22: disclosed: Publicly disclosed vulnerability
  • 2026: other: Vendor contacted early but did not respond

References

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