Vulnerability Name:

CVE-2021-45472 (CCN-216093)

Assigned:2021-11-29
Published:2021-11-29
Updated:2022-02-07
Summary:In MediaWiki through 1.37, XSS can occur in Wikibase because an external identifier property can have a URL format that includes a $1 formatter substitution marker, and the javascript: URL scheme (among others) can be used.
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-2021-45472

Source: XF
Type: UNKNOWN
mediawiki-cve202145472-xss(216093)

Source: MISC
Type: Third Party Advisory
https://gerrit.wikimedia.org/r/q/I37ece1dfdc80d38055067c9c4fa73ba591acd8bd

Source: FEDORA
Type: Third Party Advisory
FEDORA-2021-bef1126908

Source: CCN
Type: Phabricator T297570
XSS in Wikibase using formatter URL (CVE-2021-45472)

Source: MISC
Type: Third Party Advisory
https://phabricator.wikimedia.org/T297570

Source: CCN
Type: MediaWiki Web site
MediaWiki

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-45472

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mediawiki:mediawiki:*:*:*:*:*:*:*:* (Version <= 1.37)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:35:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:mediawiki:mediawiki:1.37.0:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    mediawiki mediawiki *
    fedoraproject fedora 35
    mediawiki mediawiki 1.37.0 -