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CVE-2026-1263

MEDIUM 6.4 CVSS 3.1
Published
April 10, 2026
Last modified
June 17, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Description

The Webling plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 3.9.0 due to insufficient input sanitization, insufficient output escaping, and missing capabilities checks in the 'webling_admin_save_form' and 'webling_admin_save_memberlist' functions. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject Webling forms and memberlists with arbitrary web scripts that will execute whenever an administrator views the related form or memberlist area of the WordPress admin.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • usystemsgmbh Webling — Up to and including 3.9.0

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/webling/tags/3.9.0/src/admin/actions/save_form.php#L2
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/webling/tags/3.9.0/src/admin/actions/save_memberlist.php#L2
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/webling/tags/3.9.0/src/admin/lists/Form_List.php#L122
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/webling/tags/3.9.0/src/admin/lists/Memberlist_List.php#L115
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?old_path=%2Fwebling/tags/3.9.0&new_path=%2Fwebling/tags/3.9.1
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/bd8fbe0d-0709-4fa2-9294-393ddcd05b22?source=cve
  • nvd.nist.gov Official NVD record