Vulnerability Name:

CVE-2021-20663 (CCN-197362)

Assigned:2020-12-17
Published:2021-02-24
Updated:2021-03-22
Summary:Cross-site scripting vulnerability in in Role authority setting 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.
CVSS v3 Severity:6.1 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
5.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
6.1 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
5.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
5.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-79
Vulnerability Consequences:Cross-Site Scripting
References:Source: MITRE
Type: CNA
CVE-2021-20663

Source: CCN
Type: JVN#66542874
Multiple cross-site scripting vulnerabilities in Movable Type

Source: XF
Type: UNKNOWN
movabletype-cve202120663-xss(197362)

Source: MISC
Type: Third Party Advisory
https://jvn.jp/en/jp/JVN66542874/index.html

Source: CCN
Type: Movable Type Web site
Movable Type

Source: MISC
Type: Release Notes, Vendor Advisory
https://movabletype.org/news/2021/02/mt-760-676-released.html

Vulnerable Configuration:Configuration 1:
  • cpe:/a:movabletype:movable_type:*:*:*:*:*:*:*:* (Version <= 6.7.5)
  • OR cpe:/a:movabletype:movable_type:*:*:*:*:*:*:*:* (Version >= 7.0000 and <= 7.4705)
  • OR cpe:/a:movabletype:movable_type_advanced:*:*:*:*:*:*:*:* (Version <= 7.4705)
  • OR cpe:/a:movabletype:movable_type_premium:*:*:*:*:*:*:*:* (Version <= 1.39)
  • OR cpe:/a:movabletype:movable_type_premium_advanced:*:*:*:*:*:*:*:* (Version <= 1.39)

    • Configuration CCN 1:
  • cpe:/a:sixapart:movable_type:6.5:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    movabletype movable type *
    movabletype movable type *
    movabletype movable type advanced *
    movabletype movable type premium *
    movabletype movable type premium advanced *
    sixapart movable type 6.5