CVE-2026-71204 (GCVE-0-2026-71204)

Vulnerability from cvelistv5 – Published: 2026-08-05 06:59 – Updated: 2026-08-05 06:59
VLAI
Title
changedetection.io: Omitted Checkbox in /settings Save Silently Disables API Key Enforcement
Summary
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.
Severity
6.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L
CWE
  • CWE-284 - Improper Access Control
Assigner
References
Impacted products
Credits
Eldor Nabijonov
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "changedetection.io",
          "programFiles": [
            "changedetectionio/blueprint/settings/__init__.py",
            "changedetectionio/forms.py"
          ],
          "vendor": "dgtlmoon",
          "versions": [
            {
              "status": "affected",
              "version": "0.55.7"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Eldor Nabijonov"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "changedetection.io\u0027s /settings save handler builds an update dict from form.data[\u0027application\u0027] and blind-merges it into the stored application settings via .update(). Because WTForms represents an unchecked checkbox as False rather than \u0027unchanged\u0027, and only the \u0027password\u0027 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."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "value": "MEDIUM"
            },
            "type": "CVSS_3.1_severity"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284 Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T06:59:00.078Z",
        "orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
        "shortName": "TuranSec"
      },
      "references": [
        {
          "url": "https://github.com/dgtlmoon/changedetection.io"
        }
      ],
      "title": "changedetection.io: Omitted Checkbox in /settings Save Silently Disables API Key Enforcement"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
    "assignerShortName": "TuranSec",
    "cveId": "CVE-2026-71204",
    "datePublished": "2026-08-05T06:59:00.078Z",
    "dateReserved": "2026-08-05T06:56:15.799Z",
    "dateUpdated": "2026-08-05T06:59:00.078Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}



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