AppCheck CMS Security Scanning is a commercial security scanning tool by AppCheck. extended-xss-search is a free security scanning tool. Compare features, ratings, integrations, and community reviews side by side to find the best security scanning fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Mid-market and enterprise teams managing WordPress, Drupal, or other CMS platforms need AppCheck CMS Security Scanning because it actually crawls modern JavaScript-heavy frontends instead of stopping at static HTML, catching XSS and IDOR flaws that traditional scanners miss. The scriptable browser interface handles multi-stage authentication, and continuous scanning with threat alerts keeps you honest between major releases. Skip this if your infrastructure is mostly API-first microservices with minimal CMS exposure; you'll pay for capabilities you don't need and gain less than a general-purpose DAST platform would offer.
Security teams doing bulk URL reconnaissance or rapid XSS triage will appreciate extended-xss-search because it tests multiple XSS payloads per URL instead of stopping at the first match, catching bypasses that simpler finders miss. It's free and sits on 187 GitHub stars, meaning you can deploy it in a scanning pipeline without vendor lock-in or licensing overhead. Skip this if you need interactive exploitation or DAST integration with your WAF; extended-xss-search is a scanner for finding the vulnerability, not managing remediation workflows.
CMS security scanner with DAST capabilities for web apps and infrastructure
A better version of my xssfinder tool that scans for different types of XSS on a list of URLs.
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Common questions about comparing AppCheck CMS Security Scanning vs extended-xss-search for your security scanning needs.
AppCheck CMS Security Scanning: CMS security scanner with DAST capabilities for web apps and infrastructure. built by AppCheck. headquartered in United Kingdom. Core capabilities include CMS-specific scan templates for multiple platforms, Browser-based crawling for modern web applications, Detection of 100,000+ known CVEs..
extended-xss-search: A better version of my xssfinder tool that scans for different types of XSS on a list of URLs..
Both serve the Security Scanning market but differ in approach, feature depth, and target audience.
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