Cyber Risks · PortSwigger Research

Professional / Community 2025.11.4

Summary: PortSwigger released Burp Suite Professional/Community 2025.11.4 on 12 December 2025, adding a default-enabled active scan check for React2Shell, a critical remote code execution vulnerability affecting React Server Components in React and Next.js, which runs once per host. The release also adds a keyboard-driven Command palette (Ctrl+K or Cmd+K), clearer Maximum memory usage settings, Burp Collaborator support in active custom scan checks, and Intruder payload lists updated from the PortSwigger XSS cheat sheet.

Bottom line: A critical RCE in React Server Components now has a scanner check that runs once per host by default, so teams running React or Next.js need to confirm their scanning actually covers every host where the flaw could sit.

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Topics
Vulnerabilities & Patching
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