Vulnerability Details : CVE-2021-20664
Cross-site scripting vulnerability in in Asset registration screen of Movable Type 7 r.4705 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.4705 and earlier (Movable Type Advanced 7 Series), Movable Type 6.7.5 and earlier (Movable Type 6.7 Series), Movable Type Premium 1.39 and earlier, and Movable Type Premium Advanced 1.39 and earlier allows remote attackers to inject an arbitrary script via unspecified vectors.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-20664
- cpe:2.3:a:movabletype:movable_type_advanced:*:*:*:*:*:*:*:*
- cpe:2.3:a:movabletype:movable_type:*:*:*:*:*:*:*:*
- cpe:2.3:a:movabletype:movable_type:*:*:*:*:*:*:*:*
- cpe:2.3:a:movabletype:movable_type_premium:*:*:*:*:*:*:*:*
- cpe:2.3:a:movabletype:movable_type_premium_advanced:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20664
0.35%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 54 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20664
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
|
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
CWE ids for CVE-2021-20664
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-20664
-
https://jvn.jp/en/jp/JVN66542874/index.html
JVN#66542874: Multiple cross-site scripting vulnerabilities in Movable TypeThird Party Advisory
-
https://movabletype.org/news/2021/02/mt-760-676-released.html
MovableType.org – News: Movable Type r.4706 (v7.6.0), v6.7.6 releasedRelease Notes;Vendor Advisory
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