Burp Suite Adds Detection Support for Critical React2Shell Vulnerabilities

ActiveScan++, a widely used extension for the popular penetration testing tool Burp Suite, has released a significant upgrade that strengthens security testing capabilities.

The scanner now includes specific detection capabilities for the critical “React2Shell” vulnerabilities, addressing two high-severity security flaws: CVE-2025-55182 and CVE-2025-66478.

ActiveScan++, a widely used extension for the popular penetration testing tool Burp Suite, has released a significant upgrade that strengthens security testing capabilities.

The scanner now includes specific detection capabilities for the critical “React2Shell” vulnerabilities, addressing two high-severity security flaws: CVE-2025-55182 and CVE-2025-66478.

React2Shell vulnerabilities are critical because they allow attackers to execute remote commands on a server, posing an immediate threat to system integrity.

By adding specific checks for these flaws, ActiveScan++ automatically enables security testers to identify these dangerous gaps during routine scans.

The extension is designed to find these complex issues without slowing down the testing process, adding minimal “noise” or network traffic while hunting for deep system vulnerabilities.

Advanced Detection Capabilities Beyond React2Shell

While React2Shell detection is the headline feature, ActiveScan++ maintains comprehensive capabilities for advanced threat detection.

The tool identifies behaviors that standard scanners often miss, including host header attacks, in which attackers trick a server into sending password reset links to unauthorized recipients.

It also detects blind code injection, a sophisticated technique in which attackers attempt to execute code in languages such as Ruby or Perl by injecting commands into data fields.

The extension’s broader detection arsenal includes several critical areas. It performs suspicious math analysis by checking whether a server evaluates mathematical expressions in text fields a telltale sign of potential code-injection risk.

The tool continues to monitor for well-known historical attacks, including Shellshock, Log4Shell, and Apache Struts vulnerabilities, ensuring comprehensive legacy threat coverage.

Additionally, ActiveScan++ identifies weaknesses in XML data handling that could lead to information disclosure and unauthorized access.

The most practical advantage for security testers is the ease of integration. Unlike complex security tools that require extensive configuration, ActiveScan++ operates without a complex setup.

Testers run a standard active scan on their target within Burp Suite, and ActiveScan++ operates automatically in the background, triggering both passive and active checks without manual intervention.

When vulnerabilities such as React2Shell are detected, they appear directly in the scan results with clear visibility and detailed information, ready for immediate review and remediation planning.

This streamlined workflow enables security teams to maintain efficient penetration testing operations while gaining access to advanced detection capabilities previously reserved for highly specialized security research tools.

The React2Shell detection update represents a meaningful step forward in automated vulnerability discovery, enabling organizations to strengthen their security posture without requiring additional specialized expertise or complex integration.

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