Security restrictions bypass in Joomla!

1) Improper access control

EUVDB-ID: #VU20195

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-15028

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in the com_contact contact form core component. A remote attacker can bypass implemented security restrictions and submit mails via disabled forms.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Joomla!: 1.6.2 - 3.9.10

CPE2.3

• cpe:2.3:a:joomla:joomla:1.6.2:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:1.6.3:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:1.6.4:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:1.6.5:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:1.6.6:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:1.7.0:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:1.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:1.7.2:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:1.7.3:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla:1.7.4:*:*:*:*:*:*:*

External links

https://developer.joomla.org/security-centre/789-20190801-core-hardening-com-contact-contact-form.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.