CVE-2021-20809

Cross-site scripting vulnerability in Create screens of Entry, Page, and Content Type of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type 6.8.0 and earlier (Movable Type 6 Series), Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series), Movable Type Premium 1.44 and earlier, and Movable Type Premium Advanced 1.44 and earlier) allows remote attackers to inject arbitrary script or HTML via unspecified vectors.

CVSS v3.0 6.1 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.1^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://movabletype.org/news/2021/08/mt-780-681-released.html	Release Notes Vendor Advisory
https://jvn.jp/en/jp/JVN97545738/index.html	Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:sixapart:movable_type:::::premium:::*
	cpe:2.3:a:sixapart:movable_type:::::premium_advanced:::*
	cpe:2.3:a:sixapart:movable_type:::::-:::*
	cpe:2.3:a:sixapart:movable_type:::::-:::*
	cpe:2.3:a:sixapart:movable_type:::::advanced:::*

Information

Published : 2021-08-25 19:15

Updated : 2021-09-01 14:17

NVD link : CVE-2021-20809

Mitre link : CVE-2021-20809

JSON object : View

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Advertisement

Products Affected

sixapart

movable_type

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://movabletype.org/news/2021/08/mt-780-681-released.html", "name": "https://movabletype.org/news/2021/08/mt-780-681-released.html", "tags": ["Release Notes", "Vendor Advisory"], "refsource": "MISC"}, {"url": "https://jvn.jp/en/jp/JVN97545738/index.html", "name": "https://jvn.jp/en/jp/JVN97545738/index.html", "tags": ["Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "Cross-site scripting vulnerability in Create screens of Entry, Page, and Content Type of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type 6.8.0 and earlier (Movable Type 6 Series), Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series), Movable Type Premium 1.44 and earlier, and Movable Type Premium Advanced 1.44 and earlier) allows remote attackers to inject arbitrary script or HTML via unspecified vectors."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-79"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-20809", "ASSIGNER": "vultures@jpcert.or.jp"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "baseMetricV3": {"cvssV3": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}}, "publishedDate": "2021-08-26T02:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.44"}, {"cpe23Uri": "cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium_advanced:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.44"}, {"cpe23Uri": "cpe:2.3:a:sixapart:movable_type:*:*:*:*:-:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "6.8.0", "versionStartIncluding": "6.0"}, {"cpe23Uri": "cpe:2.3:a:sixapart:movable_type:*:*:*:*:-:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "7.8.0", "versionStartIncluding": "7.0"}, {"cpe23Uri": "cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "7.8.0", "versionStartIncluding": "7.0"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-09-01T21:17Z"}