Vulnerability Details : CVE-2021-20837
Potential exploit
Movable Type 7 r.5002 and earlier (Movable Type 7 Series), Movable Type 6.8.2 and earlier (Movable Type 6 Series), Movable Type Advanced 7 r.5002 and earlier (Movable Type Advanced 7 Series), Movable Type Advanced 6.8.2 and earlier (Movable Type Advanced 6 Series), Movable Type Premium 1.46 and earlier, and Movable Type Premium Advanced 1.46 and earlier allow remote attackers to execute arbitrary OS commands via unspecified vectors. Note that all versions of Movable Type 4.0 or later including unsupported (End-of-Life, EOL) versions are also affected by this vulnerability.
Products affected by CVE-2021-20837
- cpe:2.3:a:sixapart:movable_type:*:*:*:*:*:*:*:*
- cpe:2.3:a:sixapart:movable_type:*:*:*:*:-:*:*:*
- Sixapart » Movable Type » Advanced EditionVersions from including (>=) 7.0 and up to, including, (<=) 7.8.1cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:*:*:*
- cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium:*:*:*
- cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium_advanced:*:*:*
- Sixapart » Movable Type » Advanced EditionVersions from including (>=) 6.5.0 and up to, including, (<=) 6.8.2cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:*:*:*
- cpe:2.3:a:sixapart:movable_type:*:*:*:*:-:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20837
94.48%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20837
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-20837
-
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-20837
-
http://packetstormsecurity.com/files/164705/Movable-Type-7-r.5002-XMLRPC-API-Remote-Command-Injection.html
Movable Type 7 r.5002 XMLRPC API Remote Command Injection ≈ Packet StormExploit;Third Party Advisory;VDB Entry
-
https://jvn.jp/en/jp/JVN41119755/index.html
JVN#41119755: Movable Type XMLRPC API vulnerable to OS command injectionThird Party Advisory
-
https://movabletype.org/news/2021/10/mt-782-683-released.html
MovableType.org – News: Movable Type 7 r.5003 (v7.8.2), v6.8.3: Security updateRelease Notes;Vendor Advisory
-
http://packetstormsecurity.com/files/164818/Movable-Type-7-r.5002-XMLRPC-API-Remote-Command-Injection.html
Movable Type 7 r.5002 XMLRPC API Remote Command Injection ≈ Packet StormThird Party Advisory;VDB Entry
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