Check for Broken Links – Broken Link Checker & 404 Monitor Security & Risk Analysis

wordpress.org/plugins/check-for-broken-links

Broken link checker for WordPress. Find broken links, 404 errors, dead links and broken images. Automatic scans and AI fixes with Pro.

600 active installs v3.0.1 PHP 7.2+ WP 6.0+ Updated Jul 10, 2026
404broken-link-checkerbroken-linkslink-checkerseo
100
A · Safe
CVEs total0
Unpatched0
Last CVENever
Download
Safety Verdict

Is Check for Broken Links – Broken Link Checker & 404 Monitor Safe to Use in 2026?

Generally Safe

Score 100/100

Check for Broken Links – Broken Link Checker & 404 Monitor has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.

No known CVEs Updated 1mo ago
Risk Assessment

The "check-for-broken-links" plugin v1.0.0 exhibits a strong security posture based on the provided static analysis and vulnerability history. All identified entry points, including AJAX handlers, have proper authentication checks, and there are no REST API routes or shortcodes, minimizing the attack surface. The code demonstrates excellent security practices with 100% of SQL queries using prepared statements and all output properly escaped. Furthermore, the absence of any known CVEs or past vulnerabilities, coupled with a clean taint analysis report, indicates a well-written and secure plugin. The presence of nonce checks and capability checks on several entry points further reinforces its security. The only minor areas for consideration are the single file operation and external HTTP request, which, while not inherently insecure, could represent potential vectors if not handled with utmost care. Overall, this plugin appears to be highly secure and a low risk.

Vulnerabilities
None known

Check for Broken Links – Broken Link Checker & 404 Monitor Security Vulnerabilities

No known vulnerabilities — this is a good sign.
Version History

Check for Broken Links – Broken Link Checker & 404 Monitor Release Timeline

v3.0.1Current
v3.0.0
v2.0.1
v2.0.0
v1.0.4
v1.0.3
v1.0.2
v1.0.1
v1.0.0
Code Analysis
Analyzed Mar 16, 2026

Check for Broken Links – Broken Link Checker & 404 Monitor Code Analysis

Dangerous Functions
0
Raw SQL Queries
0
0 prepared
Unescaped Output
0
91 escaped
Nonce Checks
7
Capability Checks
3
File Operations
1
External Requests
1
Bundled Libraries
0

Output Escaping

100% escaped91 total outputs
Data Flows · Security
All sanitized

Data Flow Analysis

1 flows
<settings> (templates\admin\settings.php:0)
Source (user input) Sink (dangerous op) Sanitizer Transform Unsanitized Sanitized
Attack Surface

Check for Broken Links – Broken Link Checker & 404 Monitor Attack Surface

Entry Points3
Unprotected0

AJAX Handlers 3

authwp_ajax_wpcbl_broken_links_manual_scanincludes\admin\class-wpcbl-check-for-broken-links-admin-ajax.php:31
authwp_ajax_wpcbl_broken_links_mark_as_fixedincludes\admin\class-wpcbl-check-for-broken-links-admin-ajax.php:32
authwp_ajax_wpcbl_broken_links_mark_as_brokenincludes\admin\class-wpcbl-check-for-broken-links-admin-ajax.php:33
WordPress Hooks 13
filterplugin_row_metacheck-for-broken-links.php:137
actionplugins_loadedcheck-for-broken-links.php:228
actionadmin_enqueue_scriptsincludes\admin\class-wpcbl-check-for-broken-links-admin-assets.php:31
actionadmin_enqueue_scriptsincludes\admin\class-wpcbl-check-for-broken-links-admin-assets.php:32
actionadmin_initincludes\admin\class-wpcbl-check-for-broken-links-admin-export.php:32
actionadmin_noticesincludes\admin\class-wpcbl-check-for-broken-links-admin-notices.php:36
actionwp_loadedincludes\admin\class-wpcbl-check-for-broken-links-admin-notices.php:37
actionadmin_menuincludes\admin\class-wpcbl-check-for-broken-links-admin-settings.php:42
actionadmin_initincludes\admin\class-wpcbl-check-for-broken-links-admin-settings.php:43
filterset-screen-optionincludes\admin\class-wpcbl-check-for-broken-links-admin-settings.php:46
actionwpcbl_check_for_broken_links_scheduled_eventincludes\class-wpcbl-check-for-broken-links-schedule.php:31
actionupdate_optionincludes\class-wpcbl-check-for-broken-links-schedule.php:32
filtercron_schedulesincludes\class-wpcbl-check-for-broken-links-schedule.php:35

Scheduled Events 2

wpcbl_check_for_broken_links_scheduled_event
wpcbl_check_for_broken_links_scheduled_event
Maintenance & Trust

Check for Broken Links – Broken Link Checker & 404 Monitor Maintenance & Trust

Maintenance Signals

WordPress version tested7.0.2
Last updatedJul 10, 2026
PHP min version7.2
Downloads6K

Community Trust

Rating92/100
Number of ratings5
Active installs600
Developer Profile

Check for Broken Links – Broken Link Checker & 404 Monitor Developer Profile

Norse Digital Group LLC

3 plugins · 710 total installs

94
trust score
Avg Security Score
91/100
Avg Patch Time
1 days
View full developer profile
Detection Fingerprints

How We Detect Check for Broken Links – Broken Link Checker & 404 Monitor

Patterns used to identify this plugin on WordPress sites during automated security audits and web crawling.

Asset Fingerprints

Asset Paths
/wp-content/plugins/check-for-broken-links/assets/dist/js/admin/check-for-broken-links-admin-scripts.min.js/wp-content/plugins/check-for-broken-links/assets/dist/css/admin/check-for-broken-links-admin-styles.min.css
Script Paths
assets/dist/js/admin/check-for-broken-links-admin-scripts.min.js
Version Parameters
check-for-broken-links/assets/dist/js/admin/check-for-broken-links-admin-scripts.min.js?ver=check-for-broken-links/assets/dist/css/admin/check-for-broken-links-admin-styles.min.css?ver=

HTML / DOM Fingerprints

Data Attributes
data-nonce
JS Globals
wpcbl_check_for_broken_links_params
FAQ

Frequently Asked Questions about Check for Broken Links – Broken Link Checker & 404 Monitor