#VU14557 Security restrictions bypass in Joomla! - CVE-2018-15881

Vulnerability identifier: #VU14557

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-15881

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Joomla!
Web applications / CMS

Vendor: Joomla!

Description
The disclosed vulnerability allows a remote attacker to bypass security restrictions.

The vulnerability exists in custom fields due to inadequate checks regarding disabled fields. A remote attacker can supply specially crafted fields, bypass security restrictions and violate ACL in custom fields.

Mitigation
Update to version 3.8.12.

Vulnerable software versions

Joomla!: 3.7.0 - 3.7.5, 3.8.0 - 3.8.11

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

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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