CVE-2021-20837
critical-risk
Published 2021-10-26
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.
Do I need to act?
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94.2% chance of exploitation in next 30 days
EPSS score — higher than 6% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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1 public exploit available
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (5)
Affected Vendors
References (8)
Third Party Advisory
http://packetstormsecurity.com/files/164818/Movable-Type-7-r.5002-XMLRPC-API-Rem...
Third Party Advisory
https://jvn.jp/en/jp/JVN41119755/index.html
Third Party Advisory
http://packetstormsecurity.com/files/164818/Movable-Type-7-r.5002-XMLRPC-API-Rem...
Third Party Advisory
https://jvn.jp/en/jp/JVN41119755/index.html
71
/ 100
critical-risk
Severity
32/34 · Critical
Exploitability
27/34 · High
Exposure
12/34 · Low