Cross-Site Scripting Vulnerability in Movable Type by Six Apart
CVE-2021-20665

6.1MEDIUM

Key Information:

Vendor: Six Apart Ltd.
Status: Movable Type
Vendor: CVE Published:; 5 March 2021

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What is CVE-2021-20665?

A cross-site scripting vulnerability exists in the Add Asset screen of the Contents field in Movable Type and its associated products. This flaw allows remote attackers to inject arbitrary scripts through unspecified vectors, potentially compromising the security of affected applications and their users. It is critical for users and administrators to apply the latest security updates to mitigate the risks associated with this vulnerability.

Affected Version(s)

Movable Type Movable Type 7 r.4705 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.4705 and earlier (Movable Type Advanced 7 Series), Movable Type Premium 1.39 and earlier, and Movable Type Premium Advanced 1.39 and earlier