Main Vulnerability Database Vulnerabilities #VU27919

Arbitrary file upload in Six Apart Ltd products - CVE-2020-5577

Published: May 14, 2020

Vulnerability identifier: #VU27919

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-5577

CWE-ID: CWE-434

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload. A remote authenticated attacker can upload a malicious file and execute it on the server.

Affected software

Movable Type Premium
Movable Type Premium Advanced
Movable Type
Movable Type Advanced
Movable Type for AWS

How to mitigate CVE-2020-5577

Install updates from vendor's website.

Movable Type - addressed in versions 6.3.12, 6.6, 7.3
Movable Type Advanced - addressed in versions 6.3.12, 6.6.0, 7.3.0
Movable Type for AWS - update to 7.3.0

External References

Related Security Bulletins