CVE-2026-96562 json
Broken Link Checker <= 2.4.14.1 - Unauthenticated Arbitrary Shortcode Execution via parser_callback
published 2026-10-16 24 d ago modified 2026-10-16 24 d ago also EUVD-2026-102635
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 24 d ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Affected products
- wpmudev Broken Link Checker
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/04cc4b99-8c27-4f95-b860-608c01af843b?source=cve
- plugins.trac.wordpress.org /browser/broken-link-checker/tags/2.4.14.1/legacy/modules/parsers/html_link.php#L72
- plugins.trac.wordpress.org /browser/broken-link-checker/tags/2.4.14.1/legacy/modules/parsers/image.php#L66
- plugins.trac.wordpress.org /browser/broken-link-checker/tags/2.4.14.1/legacy/modules/containers/comment.php#L229
- plugins.trac.wordpress.org /browser/broken-link-checker/tags/2.4.14.1/legacy/includes/containers.php#L298
- plugins.trac.wordpress.org /changeset?reponame=&old=3740705%40broken-link-checker&new=3740705%40broken-link-checker
Sources
- CVE List CVE-2026-96562
- NVD CVE-2026-96562
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