Vulnerability Name:

CVE-2020-11889 (CCN-180359)

Assigned:2020-03-13
Published:2020-03-13
Updated:2021-07-21
Summary:An issue was discovered in Joomla! before 3.9.17. Incorrect ACL checks in the access level section of com_users allow the unauthorized deletion of usergroups.
CVSS v3 Severity:5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
5.1 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
5.1 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-863
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2020-11889

Source: CCN
Type: Joomla! Developers Web site
Core - Incorrect access control in com_users access level deletion function

Source: MISC
Type: Vendor Advisory
https://developer.joomla.org/security-centre/811-20200403-core-incorrect-access-control-in-com-users-access-level-deletion-function

Source: XF
Type: UNKNOWN
joomla-cve202011889-sec-bypass(180359)

Source: CCN
Type: Joomla Web site
Joomla

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-11889

Vulnerable Configuration:Configuration 1:
  • cpe:/a:joomla:joomla!:*:*:*:*:*:*:*:* (Version >= 2.5.0 and < 3.9.17)

  • Configuration CCN 1:
  • cpe:/a:joomla:joomla!:3.9.1:-:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.5:-:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.11:*:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.13:*:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla:3.9.13:*:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.8.9:-:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.8.10:*:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.0:-:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.7:-:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.8:*:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.9:*:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.12:*:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.14:*:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.15:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    joomla joomla! *
    joomla joomla! 3.9.1 -
    joomla joomla! 3.9.5 -
    joomla joomla! 3.9.11
    joomla joomla! 3.9.13
    joomla joomla 3.9.13
    joomla joomla! 3.8.9
    joomla joomla! 3.8.10
    joomla joomla! 3.9.0 -
    joomla joomla! 3.9.7
    joomla joomla! 3.9.8
    joomla joomla! 3.9.9
    joomla joomla! 3.9.12
    joomla joomla! 3.9.14
    joomla joomla! 3.9.15