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CVE-2026-96562

MEDIUM 6.5 CVSS 3.1
Published
October 16, 2026
Last modified
October 16, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-94
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Description

The The Broken Link Checker plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 2.4.14.1. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes. Exploitation requires that a submitted comment containing the shortcode payload in an href or src attribute is approved through the site's normal comment moderation workflow; once approved, the shortcode is executed automatically via WP-Cron without any further attacker interaction.

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

  • wpmudev Broken Link Checker — Up to and including 2.4.14.1

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/broken-link-checker/tags/2.4.14.1/legacy/includes/containers.php#L298
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/broken-link-checker/tags/2.4.14.1/legacy/modules/containers/comment.php#L229
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/broken-link-checker/tags/2.4.14.1/legacy/modules/parsers/html_link.php#L72
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/broken-link-checker/tags/2.4.14.1/legacy/modules/parsers/image.php#L66
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3740705%40broken-link-checker&new=3740705%40broken-link-checker
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/04cc4b99-8c27-4f95-b860-608c01af843b?source=cve
  • nvd.nist.gov Official NVD record