An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method
The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Jquery_validation | Jqueryvalidation | * | 1.19.4 (excluding) |
| Civicrm | Ubuntu | bionic | * |
| Civicrm | Ubuntu | impish | * |
| Civicrm | Ubuntu | kinetic | * |
Attackers can create crafted inputs that
intentionally cause the regular expression to use
excessive backtracking in a way that causes the CPU
consumption to spike.