CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NCVE-2026-25527
Medium (5.3) in webtechnologies changedetection. EPSS 1.0% chance of exploitation in the next 30 days. Fixed in changedetection-io 0.53.2.
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.
Severity
- EPSS
- 1.0% chance of exploitation in the next 30 days; higher than 63% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- webtechnologies:changedetection
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-9jj8-v89v-xjvw | PyPI | changedetection-io | <0.53.2 | 0.53.2 |
| PYSEC-2026-2124 | PyPI | changedetection-io | <0.53.2 | 0.53.2 |