Cross-Site Scripting Vulnerability in Movable Type by Six Apart
CVE-2021-20812

6.1MEDIUM

Key Information:

Vendor

Six Apart Ltd.

Status
Movable Type
Vendor
CVE Published:
26 August 2021

What is CVE-2021-20812?

A cross-site scripting vulnerability exists in the Setting screen of the Server Sync feature in Movable Type. This flaw affects Movable Type Advanced 7 (release 4903 and earlier) and Movable Type Premium Advanced 1.44 and earlier. Remote attackers can exploit this vulnerability to inject arbitrary script or HTML into the affected application, potentially compromising user data and session integrity through various unspecified vectors.

Affected Version(s)

Movable Type Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series) and Movable Type Premium Advanced 1.44 and earlier

References

https://movabletype.org/news/2021/08/mt-780-681-released....
x_refsource_MISC
https://jvn.jp/en/jp/JVN97545738/index.html
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CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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