JQuery prototype pollution in Joomla!

Published: 2019-04-10 03:14:29 | Updated: 2019-04-10
Severity Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2019-11358
CVSSv3 4.8 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C]
CWE ID CWE-400
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software Joomla!
Vulnerable software versions Joomla! 3.9.4
Joomla! 3.9.3
Joomla! 3.9.1

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Vendor URL Joomla!

Security Advisory

Prototype pollution vulnerability in $.extend method of JQuery was fixed within Joomla! core component.

1) Prototype pollution

Description

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.

Remediation

Update to version 3.9.5.

External links

https://developer.joomla.org/security-centre.html

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