CVE-2021-20663 is a cross-site scripting (XSS) vulnerability affecting multiple versions of Movable Type, including Movable Type 7 Series, Movable Type Advanced 7 Series, Movable Type 6.7 Series, Movable Type Premium, and Movable Type Premium Advanced. This flaw allows remote attackers to inject arbitrary scripts into the Role authority setting screen through unspecified vectors. With a CVSS score of 6.1 (Medium), successful exploitation requires user interaction and could lead to limited impact on confidentiality and integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 6.7.5CPE matchmatch criteria | cpe:2.3:a:movabletype:movable_type:*:*:*:*:*:*:*:* | ||
>= 7.0000, <= 7.4705CPE matchmatch criteria | cpe:2.3:a:movabletype:movable_type:*:*:*:*:*:*:*:* | ||
<= 7.4705CPE matchmatch criteria | cpe:2.3:a:movabletype:movable_type_advanced:*:*:*:*:*:*:*:* | ||
<= 1.39CPE matchmatch criteria | cpe:2.3:a:movabletype:movable_type_premium:*:*:*:*:*:*:*:* | ||
<= 1.39CPE matchmatch criteria | cpe:2.3:a:movabletype:movable_type_premium_advanced:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.