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JpcertCVE-2021-20812

HistoryAug 26, 2021 - 2:15 a.m.

CVE-2021-20812

2021-08-2602:15:11

CWE-79

jpcert

web.nvd.nist.gov

cve-2021-20812

cross-site scripting

server sync

movable type

remote attackers

html injection

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

AI Score

Confidence

High

EPSS

0.001

Percentile

47.6%

JSON

Cross-site scripting vulnerability in Setting screen of Server Sync of Movable Type (Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series) and Movable Type Premium Advanced 1.44 and earlier) allows remote attackers to inject arbitrary script or HTML via unspecified vectors.

Affected configurations

Nvd

Node

sixapartmovable_typeRange≤1.44premium_advanced

sixapartmovable_typeRange7.0–7.8.0advanced

VendorProductVersionCPE
sixapartmovable_type*cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium_advanced:*:*:*
sixapartmovable_type*cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:*:*:*

Vendor	Product	Version	CPE
sixapart	movable_type	*	cpe:2.3:a:sixapart:movable_type:::::premium_advanced:::*
sixapart	movable_type	*	cpe:2.3:a:sixapart:movable_type:::::advanced:::*

CNA Affected

[
  {
    "product": "Movable Type",
    "vendor": "Six Apart Ltd.",
    "versions": [
      {
        "status": "affected",
        "version": "Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series) and Movable Type Premium Advanced 1.44 and earlier"
      }
    ]
  }
]

References

jvn.jp/en/jp/JVN97545738/index.html

movabletype.org/news/2021/08/mt-780-681-released.html

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

AI Score

Confidence

High

EPSS

0.001

Percentile

47.6%

JSON

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