Cross-site Scripting Vulnerability in Movable Type Products by Six Apart
CVE-2021-20810

6.1MEDIUM

Key Information:

Vendor
Six Apart Ltd.
Status
Movable Type
Vendor
CVE Published:
26 August 2021

Summary

This vulnerability in Movable Type allows remote attackers to execute arbitrary scripts or HTML through the Website Management screen, exposing users to potential data theft and phishing attacks. The affected versions have not specified the vectors that facilitate this attack, highlighting the importance of immediate patching and monitoring of web applications for untrusted inputs.

Affected Version(s)

Movable Type Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type 6.8.0 and earlier (Movable Type 6 Series), Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series), Movable Type Premium 1.44 and earlier, and Movable Type Premium Advanced 1.44 and earlier

References

https://movabletype.org/news/2021/08/mt-780-681-released....
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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

.