Vulnerability Name:

CVE-2021-23124 (CCN-194697)

Assigned:2021-01-02
Published:2021-01-02
Updated:2021-01-19
Summary:An issue was discovered in Joomla! 3.9.0 through 3.9.23. The lack of escaping in mod_breadcrumbs aria-label attribute allows XSS attacks.
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)
5.3 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:U/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)
5.3 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:U/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-2021-23124

Source: CCN
Type: Joomla! Developers Web site
Core - XSS in mod_breadcrumbs aria-label attribute

Source: MISC
Type: Vendor Advisory
https://developer.joomla.org/security-centre/837-20210102-core-xss-in-mod-breadcrumbs-aria-label-attribute.html

Source: XF
Type: UNKNOWN
joomla-cve202123124-xss(194697)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:joomla:joomla!:*:*:*:*:*:*:*:* (Version >= 3.9.0 and <= 3.9.23)

    • Configuration CCN 1:
  • cpe:/a:joomla:joomla!:3.9.0:-:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.2:-:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.3:-:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.4:-:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.6:-:*:*:*:*:*:*
  • 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!:3.9.10:*:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.12:*:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.14:*:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.15:*:*:*:*:*:*:*
  • OR cpe:/a:joomla:joomla!:3.9.19:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    joomla joomla! *
    joomla joomla! 3.9.0 -
    joomla joomla! 3.9.2 -
    joomla joomla! 3.9.3 -
    joomla joomla! 3.9.4
    joomla joomla! 3.9.6 -
    joomla joomla! 3.9.7
    joomla joomla! 3.9.8
    joomla joomla! 3.9.9
    joomla joomla! 3.9.10
    joomla joomla! 3.9.12
    joomla joomla! 3.9.14
    joomla joomla! 3.9.15
    joomla joomla! 3.9.19