Description
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."
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | asterisk | 1:1.6.2.0~rc3-1 | — |
| Debian 14 | jscropperui | 1.2.1-1 | — |
| Debian 14 | libhtml-prototype-perl | 1.48-3 | — |
| Debian 14 | symfony | 1.0.21-1.1 | — |
| Debian 13 | jscropperui | 1.2.1-1 | — |
| Debian 13 | libhtml-prototype-perl | 1.48-3 | — |
| Debian 13 | symfony | 1.0.21-1.1 | — |
| Debian 12 | jscropperui | 1.2.1-1 | — |
| Debian 12 | libhtml-prototype-perl | 1.48-3 | — |
| Debian 12 | symfony | 1.0.21-1.1 | — |
| Debian 5.0 | asterisk | 1:1.4.21.2~dfsg-3+lenny1 | DSA-1952-1 |
Advisories 1
- DSA-1952-1 asterisk - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026