Improper Neutralization of Special Elements in Output Used by a Downstream Component in Six Apart Ltd products - CVE-2020-5574

 

Improper Neutralization of Special Elements in Output Used by a Downstream Component in Six Apart Ltd products - CVE-2020-5574

Published: May 14, 2020


Vulnerability identifier: #VU27916
CSH Severity: Medium
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:Green
CVE-ID: CVE-2020-5574
CWE-ID: CWE-74
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Six Apart Ltd
Affected software:
Movable Type
Movable Type Advanced
Movable Type for AWS
Movable Type Premium
Movable Type Premium Advanced

Detailed vulnerability description

The vulnerability allows a remote attacker to perform cache poisoning attack.

The vulnerability exists due to improper input validation of HTML code. A remote attacker can send a specially crated request and inject arbitrary HTML attribute value.


How to mitigate CVE-2020-5574

Install updates from vendor's website.

Sources