CVE-2026-71204
changedetection.io - Omitted Checkbox in /settings Save Silently Disables API Key Enforcement
changedetection.io's /settings save handler builds an update dict from form.data['application'] and blind-merges it into the stored application settings via .update.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
changedetection.io - Omitted Checkbox in /settings Save Silently Disables API Key Enforcement
changedetection.io's /settings save handler builds an update dict from form.data['application'] and blind-merges it into the stored application settings via .update.
- Record
CVE-2026-71204- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L - Weakness
- CWE-284
- Updated
- 2026-11-02
EUVDEUVD-2026-53201
changedetection.io's /settings save handler builds an update dict from form.data['application'] and blind-merges it into the stored application settings via .update.
- Record
EUVD-2026-53201- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-84vg-9r54-xpgh
changedetection.io's /settings save handler builds an update dict from form.data['application']...
changedetection.io's /settings save handler builds an update dict from form.data['application'] and blind-merges it into the stored application settings via .update(). Because WTForms represents an unchecked checkbox as False rather than 'unchanged', and only the 'password' field is special-cased against this problem, a POST to /settings that omits the api_access_token_enabled field (e.g. a minimal scripted request) silently disables API key enforcement for the entire REST API, exposing the full watch list, history, and configuration to unauthenticated requests.
- Record
GHSA-84vg-9r54-xpgh- CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L - Weakness
- CWE-284
- Updated
- 2026-11-02
NVD
changedetection.io's /settings save handler builds an update dict from form.data['application'] and blind-merges it into the stored application settings via .update.
- Record
CVE-2026-71204- CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L - Weakness
- CWE-284
- Updated
- 2026-11-02
OSV
changedetection.io - Omitted Checkbox in /settings Save Silently Disables API Key Enforcement
changedetection.io's /settings save handler builds an update dict from form.data['application'] and blind-merges it into the stored application settings via .update.
- Record
CVE-2026-71204- CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L - Weakness
- CWE-284
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | Nel-droid/CVE-2026-71204-PoC | 2026-08-16 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-71204 is a medium vulnerability (CVSS 6.3) in Dgtlmoon Changedetection.io, published August 5, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.32%, the 25th percentile. No source names a fixed version.