Vulnerability identifier: #VU54062

Vulnerability risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-26138

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SilverStripe Framework
Server applications / Frameworks for developing and running applications

Vendor: SilverStripe

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to a FormField with square brackets in the field name skips validation. 

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SilverStripe Framework: 3.0.0 - 4.7.3

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External links
http://www.silverstripe.org/download/security-releases/
http://www.silverstripe.org/blog/tag/release
http://forum.silverstripe.org/c/releases
http://www.silverstripe.org/download/security-releases/cve-2020-26138

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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.