CVE•Published 2026-02-19•1 article on news•6 live references•NVD data
CVE-2026-25527
Vulnerability data via CVEDB (Shodan)
CVSS v3.1
5.3
MEDIUM
EPSS percentile
58
Exploit Prediction Scoring System · top 42% of all CVEs
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.
Timeline
Published 2026-02-19
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-25527Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Webtechnologies Changedetection"All exposed Webtechnologies Changedetection instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Changedetection"HTTP body or banner mentions "Changedetection" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-25527Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-25527Censys host search filtered to this CVE id.
grep.app
CVE-2026-25527Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-25527GitHub code search for direct mentions.
Google dork
"CVE-2026-25527" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.