CVE-2019-11358

MEDIUM6.1EPSS 1.5%

XSS in jQuery as used in Drupal, Backdrop CMS, and other products

Published: 4/26/2019Modified: 4/28/2026

Description

jQuery before 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles jQuery.extend(true, {}, ...) because of Object.prototype pollution. If an unsanitized source object contained an enumerable __proto__ property, it could extend the native Object.prototype.

Affected packages (16)

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1MEDIUM6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References (111)