Professional 1.6.33
Summary: PortSwigger released Burp Suite 1.6.33 on 13 January 2016, adding detection of blind XSS through Burp Collaborator. The scanner sends payloads with a multi-context break-out sequence that triggers a connection to the Collaborator server, confirming out-of-band when a stored payload fires at a retrieval point the tester cannot access.
What you should know: Blind XSS hides where the attacker has no privileges to see the retrieval point, so testers spraying alert(1) payloads have hit countless admins with harmless alert boxes while the underlying bug went unfound - and the source says these vulnerabilities remain relatively prevalent.
Read the original at PortSwigger Research ↗
- Topics
- Vulnerabilities & Patching
- Related
- Attackers Exploit UnrealIRCd Flaw That Enables Server-Level Command Injection Cyber Risks · Nov 14, 2026U.S. CISA adds Check Point and UnrealIRCd flaws to its Known Exploited Vulnerabilities catalog Cyber Risks · Nov 14, 2026PostgreSQL Patches 52 Flaws, Including 22-Year-Old Bug Enabling Authenticated RCE Cyber Risks · Nov 13, 2026