The jQuery Validation Plugin (jquery-validation) provides drop-in validation for forms. Versions of jquery-validation prior to 1.19.5 are vulnerable to regular expression denial of service (ReDoS) when an attacker is able to supply arbitrary input to the url2 method. This is due to an incomplete fix for CVE-2021-43306. Users should upgrade to version 1.19.5 to receive a patch.
Weakness
The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Jquery_validation | Jqueryvalidation | * | 1.19.5 (excluding) |
| Civicrm | Ubuntu | bionic | * |
| Civicrm | Ubuntu | esm-apps/xenial | * |
| Civicrm | Ubuntu | focal | * |
| Civicrm | Ubuntu | impish | * |
| Civicrm | Ubuntu | kinetic | * |
Potential Mitigations
Related Attack Patterns
References
- https://github.com/jquery-validation/jquery-validation/commit/5bbd80d27fc6b607d2f7f106c89522051a9fb0dd
- https://github.com/jquery-validation/jquery-validation/releases/tag/1.19.5
- https://github.com/jquery-validation/jquery-validation/security/advisories/GHSA-ffmh-x56j-9rc3
- https://github.com/jquery-validation/jquery-validation/commit/5bbd80d27fc6b607d2f7f106c89522051a9fb0dd
- https://github.com/jquery-validation/jquery-validation/releases/tag/1.19.5
- https://github.com/jquery-validation/jquery-validation/security/advisories/GHSA-ffmh-x56j-9rc3