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VULNERABILITIES

CVE-2021-20813 Details

Description

Cross-site scripting vulnerability in Edit screen of Content Data of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series) and Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series)) allows remote attackers to inject arbitrary script or HTML via unspecified vectors.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://jvn.jp/en/jp/JVN97545738/index.html CVEThird Party Advisory
https://movabletype.org/news/2021/08/mt-780-681-released.html CVERelease NotesVendor Advisory
https://jvn.jp/en/jp/JVN97545738/index.html [email protected]Third Party Advisory
https://movabletype.org/news/2021/08/mt-780-681-released.html [email protected]Release NotesVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')[email protected]

Affected Products

ProductVersions
sixapart movable type
>= 7.0, < 7.8.0

CPE

  • cpe:2.3:a:sixapart:movable_type:*:*:*:*:-:*:*:*
  • cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-20813
NVD Published Date:
Aug 26, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-20813 Details - Not Deferred