OWASPASVS 5.0 requirement

ASVS-V3.5.6 Jsonp functionality is not enabled anywhere across the application to avoid cross-site script inclusion (xssi) attacks.

L3 Published 2025 Official page ↗
Standard
OWASP ASVS 5.0
Chapter
V3 Web Frontend Security
Section
V3.5 Browser Origin Separation
Level
L3 (requirement applies from this verification level up)

Requirement

Verify that JSONP functionality is not enabled anywhere across the application to avoid Cross-Site Script Inclusion (XSSI) attacks.