Description
changedetection.io's REST API resources are protected by an @auth.check_token decorator validating the caller's x-api-key header, except the Spec resource registered at /api/v1/full-spec (changedetectionio/api/Spec.py), whose get method carries neither @auth.check_token nor @validate_openapi_request.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| dgtlmoon | changedetection.io | 0.55.7 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
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Nel-droid/CVE-2026-71203-PoC ★ 0 · Aug 16, 2026
PoC: changedetection.io unauthenticated OpenAPI schema disclosure (CVE-2026-71203, Medium 5.3)
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- https://github.com/dgtlmoon/changedetection.io third-party-advisory