Input validation error in SilverStripe Framework - CVE-2020-26138
Published: June 11, 2021
Vulnerability identifier: #VU54062
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-26138
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
SilverStripe Framework
How to mitigate CVE-2020-26138
Install updates from vendor's website.
SilverStripe Framework - addressed in versions 4.7.4, 4.8.0