Input validation error in W3 Total Cache - #VU18404
Published: May 7, 2019
Vulnerability identifier: #VU18404
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Frederick Townes
Affected software:
W3 Total Cache
W3 Total Cache
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass certain security restrictions.
The vulnerability exists due to insufficient validation of "openssl_verify" result in "/services/MessageValidator/MessageValidator.php". A remote attacker can create a specially crafted certificate and bypass cryptographic check.
Remediation
Install updates from vendor's website.