#VU55861 Permissions, Privileges, and Access Controls in Contao - CVE-2021-37627

Vulnerability identifier: #VU55861

Vulnerability risk: Low

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-37627

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Contao
Web applications / CMS

Vendor: Contao

Description

The vulnerability allows a remote administrator to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in the form generator, which leads to security restrictions bypass and privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Contao: 4.4.0 - 4.11.6

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External links
https://github.com/contao/contao/security/advisories/GHSA-hq5m-mqmx-fw6m
https://contao.org/en/security-advisories/privilege-escalation-with-the-form-generator.html

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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