CVE-2026-96562: medium-severity vulnerability in wpmudev Broken Link Checker
Broken Link Checker <= 2.4.14.1 - Unauthenticated Arbitrary Shortcode Execution via parser_callback
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.3%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected products
wpmudev · Broken Link CheckerRelated CVEs — wpmudev Broken Link Checker
In the same product, most dangerous first.
CVE-2022-2438HIGHBroken Link Checker <= 1.11.16 - Authenticated (Admin+) PHAR DeserializationEPSS 1.8%CVE-2026-75528HIGHBroken Link Checker <= 2.4.13 - Unauthenticated Stored Cross-Site Scripting via Comment Author URL / Link LogEPSS 0.5%CVE-2024-8981HIGHBroken Link Checker <= 2.4.0 - Reflected Cross-Site ScriptingEPSS 0.5%CVE-2025-4047MEDIUMBroken Link Checker <= 2.4.4 - Missing Autorization to Authenticated (Subscriber+) Plugin Status Dashboard ViewEPSS 0.3%
References
https://plugins.trac.wordpress.org/browser/broken-link-checker/tags/2.4.14.1/legacy/includes/containers.php#L298https://plugins.trac.wordpress.org/browser/broken-link-checker/tags/2.4.14.1/legacy/modules/containers/comment.php#L229https://plugins.trac.wordpress.org/browser/broken-link-checker/tags/2.4.14.1/legacy/modules/parsers/html_link.php#L72https://plugins.trac.wordpress.org/browser/broken-link-checker/tags/2.4.14.1/legacy/modules/parsers/image.php#L66https://plugins.trac.wordpress.org/changeset?reponame=&old=3740705%40broken-link-checker&new=3740705%40broken-link-checkerhttps://www.wordfence.com/threat-intel/vulnerabilities/id/04cc4b99-8c27-4f95-b860-608c01af843b?source=cve