CVE-2020-10960
mediumpriority · track · 21EPSS 0.012 · 67 %ileEURUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (10)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- GHSA-pfm2-mqwj-ggm5MediaWiki makeCollapsible allows applying event handler to any CSS selector2022-05-24ghsa · osvUS
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).
- BIT-mediawiki-2020-109602024-03-06vendor · osvUS
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).
also known as (6)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://lists.wikimedia.org/pipermail/wikitech-l/2020-March/093243.htmlcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-10960cnnvd
- https://phabricator.wikimedia.org/T246602cnnvd
- https://vigilance.fr/vulnerability/MediaWiki-Cross-Site-Scripting-via-User-generated-CSS-Selectors-31931cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.1202/cnnvd
- https://lists.wikimedia.org/pipermail/wikitech-l/2020-March/093243.htmlenisa_euvd
- https://phabricator.wikimedia.org/T246602enisa_euvd
- https://lists.wikimedia.org/pipermail/wikitech-l/2020-March/093243.htmlMailing ListPatchVendor Advisorynvd
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