CVE-2007-2383: Prototypejs Prototype Framework

Medium severity, CVSS 5.0. EPSS: 2.4% chance of exploitation in the next 30 days.

The Prototype (prototypejs) framework before 1.5.1 RC3 exchanges data using JavaScript Object Notation (JSON) without an associated protection scheme, which allows remote attackers to obtain the data via a web page that retrieves the data through a URL in the SRC attribute of a SCRIPT element and captures the data using other JavaScript code, aka "JavaScript Hijacking."

Affected products

• Prototypejs Prototype Framework: version 1.5.1_rc3 only

Published 2007-04-30. Last modified 2026-06-16.