Prototype pollution in jQuery implementation in Drupal

Published: 2019-04-18
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-11358
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Web applications / CMS

Vendor Drupal

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Prototype pollution

EUVDB-ID: #VU18092

Risk: Low


CVE-ID: CVE-2019-11358

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: Yes


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to prototype pollution. A remote attacker can trick the extend function can into modifying the prototype of Object when the attacker controls part of the structure passed to this function. This can let an attacker add or modify an existing property that will then exist on all objects and perform a denial of service (DoS) attack.


Install updates from vendor's website.

Vulnerable software versions

Drupal: 7.0 - 8.6.14

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?