# Broken Link Checker <= 2.4.14.1 - Cross-Site Request Forgery to Scan Data Deletion via Recheck

- **ID:** WPSEC-2026-0919
- **Plugin:** Broken Link Checker (`broken-link-checker`), https://wordpress.org/plugins/broken-link-checker/
- **Affected versions:** all versions before 2.4.15
- **Fixed in:** 2.4.15 (Update to 2.4.15 or later.)
- **Severity:** Medium 4.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)
- **Weakness:** CWE-352
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-10-14)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/broken-link-checker
- **Fix released:** 2026-10-12
- **Published:** 2026-10-14
- **URL:** https://wpsec.com/vuln/WPSEC-2026-0919/

## Description

The Broken Link Checker plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.4.14.1 due to missing nonce validation on the recheck action of the settings page, which ran before the settings form's nonce check. This makes it possible for unauthenticated attackers to truncate the plugin's link and link instance tables, discarding all accumulated scan results and forcing a full resynchronization, via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

## References

- https://wpsec.com/vuln/WPSEC-2026-0919/
- https://plugins.svn.wordpress.org/broken-link-checker/tags/2.4.15/
- https://wordpress.org/plugins/broken-link-checker/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-0919/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.