PYSEC-2026-1240

Vulnerability from pysec - Published: 2026-07-07 14:34 - Updated: 2026-07-07 17:23
VLAI
Details

Summary

When a WebDriver is used to fetch files source:file:///etc/passwd can be used to retrieve local system files, where the more traditional file:///etc/passwd gets blocked

Details

The root cause is the payload source:file:///etc/passwdpasses the regex here and also passes the check here where a traditional file:///etc/passwd would get blocked

PoC

CL-ChangeDetection.io Path Travsersal-311024-181039.pdf

Impact

It depends on where the webdriver is deployed but generally this is a high impact vulnerability

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Impacted products
Name purl
changedetection-io pkg:pypi/changedetection-io
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "changedetection-io",
        "purl": "pkg:pypi/changedetection-io"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.47.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.38.2",
        "0.39",
        "0.39.1",
        "0.39.10",
        "0.39.10.post1",
        "0.39.10.post2",
        "0.39.11",
        "0.39.12",
        "0.39.13",
        "0.39.13.1",
        "0.39.14",
        "0.39.14.1",
        "0.39.15",
        "0.39.16",
        "0.39.17",
        "0.39.17.1",
        "0.39.17.2",
        "0.39.18",
        "0.39.19",
        "0.39.19.1",
        "0.39.2",
        "0.39.20",
        "0.39.20.1",
        "0.39.20.2",
        "0.39.20.3",
        "0.39.20.4",
        "0.39.21",
        "0.39.21.1",
        "0.39.22",
        "0.39.22.1",
        "0.39.3",
        "0.39.4",
        "0.39.5",
        "0.39.6",
        "0.39.7",
        "0.39.8",
        "0.39.9",
        "0.40.0",
        "0.40.0.1",
        "0.40.0.2",
        "0.40.0.3",
        "0.40.0.4",
        "0.40.1.0",
        "0.40.1.1",
        "0.40.2",
        "0.40.3",
        "0.41",
        "0.41.1",
        "0.42",
        "0.42.1",
        "0.42.2",
        "0.42.3",
        "0.43.1",
        "0.43.2",
        "0.44",
        "0.44.1",
        "0.45",
        "0.45.1",
        "0.45.11",
        "0.45.12",
        "0.45.13",
        "0.45.14",
        "0.45.15",
        "0.45.16",
        "0.45.17",
        "0.45.18",
        "0.45.19",
        "0.45.2",
        "0.45.20",
        "0.45.21",
        "0.45.22",
        "0.45.23",
        "0.45.24",
        "0.45.25",
        "0.45.26",
        "0.45.3",
        "0.45.4",
        "0.45.5",
        "0.45.6",
        "0.45.7",
        "0.45.7.1",
        "0.45.7.2",
        "0.45.7.3",
        "0.45.8",
        "0.45.8.1",
        "0.45.9",
        "0.46.0",
        "0.46.1",
        "0.46.2",
        "0.46.3",
        "0.46.4",
        "0.47.0",
        "0.47.1",
        "0.47.2",
        "0.47.3",
        "0.47.4"
      ]
    }
  ],
  "aliases": [
    "CVE-2024-51483",
    "GHSA-cwgg-57xj-g77r"
  ],
  "details": "### Summary\nWhen a WebDriver is used to fetch files source:file:///etc/passwd can be used to retrieve local system files, where the more traditional file:///etc/passwd gets blocked\n\n### Details\nThe root cause is the payload source:file:///etc/passwdpasses the regex [here](https://github.com/dgtlmoon/changedetection.io/blob/master/changedetectionio/model/Watch.py#L19) and also passes the check [here](https://github.com/dgtlmoon/changedetection.io/blob/master/changedetectionio/processors/__init__.py#L35) where a traditional file:///etc/passwd would get blocked\n\n### PoC\n[CL-ChangeDetection.io Path Travsersal-311024-181039.pdf](https://github.com/user-attachments/files/17591630/CL-ChangeDetection.io.Path.Travsersal-311024-181039.pdf)\n\n\n\n### Impact\nIt depends on where the webdriver is deployed but generally this is a high impact vulnerability \n",
  "id": "PYSEC-2026-1240",
  "modified": "2026-07-07T17:23:53.796531Z",
  "published": "2026-07-07T14:34:43.686864Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-cwgg-57xj-g77r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-51483"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dgtlmoon/changedetection.io"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dgtlmoon/changedetection.io/blob/master/changedetectionio/model/Watch.py#L19"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dgtlmoon/changedetection.io/blob/master/changedetectionio/processors/__init__.py#L35"
    },
    {
      "type": "WEB",
      "url": "https://github.com/user-attachments/files/17591630/CL-ChangeDetection.io.Path.Travsersal-311024-181039.pdf"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/changedetection-io"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-cwgg-57xj-g77r"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "changedetection.io Path Traversal"
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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