Medium severity · published Apr 3, 2020
CVE-2020-10960
In MediaWiki before 1.34.1, users can add various Cascading Style Sheets (CSS) classes (which can affect what content is shown or hidden in the user interface) to arbitrary DOM…
5.3
CVSS
1.2%
EPSS
No
On KEV
Description
In MediaWiki before 1.34.1, users can add various Cascading Style Sheets (CSS) classes (which can affect what content is shown or hidden in the user interface) to arbitrary DOM nodes via HTML content within a MediaWiki page. This occurs because jquery.makeCollapsible allows applying an event handler to any Cascading Style Sheets (CSS) selector. There is no known way to exploit this for cross-site scripting (XSS).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
Mediawiki · Mediawiki
before 1.34.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-10960
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-10960
Mailing List
https://lists.wikimedia.org/pipermail/wikitech-l/2020-March/093243.html
Exploit
https://phabricator.wikimedia.org/T246602
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