CVE-2021-20814: XSS
First published: Thu Aug 26 2021(Updated: )
Cross-site scripting vulnerability in Setting screen of ContentType Information Widget Plugin of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series), and Movable Type Premium 1.44 and earlier) allows remote attackers to inject arbitrary script or HTML via unspecified vectors.
Credit: vultures@jpcert.or.jp
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Sixapart Movable Type | <=1.44 | |
| Sixapart Movable Type | >=7.0<7.8.0 | |
| Sixapart Movable Type | >=7.0<7.8.0 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-20814?
CVE-2021-20814 is a cross-site scripting vulnerability in the Setting screen of the ContentType Information Widget Plugin of Movable Type.
What software is affected by CVE-2021-20814?
CVE-2021-20814 affects Movable Type versions 7 r.4903 and earlier (Movable Type 7 Series), Movable Type Advanced versions 7 r.4903 and earlier (Movable Type Advanced 7 Series), and Movable Type Premium versions 1.44 and earlier.
How severe is CVE-2021-20814?
CVE-2021-20814 has a severity level of 6.1 (Medium).
How can I fix CVE-2021-20814?
To fix CVE-2021-20814, update Movable Type to version 7.8.0 or later.
What is the Common Weakness Enumeration (CWE) ID for CVE-2021-20814?
The Common Weakness Enumeration (CWE) ID for CVE-2021-20814 is CWE-79 (Cross-Site Scripting).
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- vendor/sixapart
- canonical/sixapart movable type
- version/sixapart movable type/1.44
- version/sixapart movable type/7.0