CVE-2020-10960

Public Exploit

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).

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.29%
Vendor Advisory wikimedia.org Vendor Advisory wikimedia.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://phabricator.wikimedia.org/T246602 exploit vendor advisory
https://lists.wikimedia.org/pipermail/wikitech-l/2020-March/093243.html mailing list patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-10960?
CVE-2020-10960 has been scored as a medium severity vulnerability.
How to fix CVE-2020-10960?
To fix CVE-2020-10960, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-10960 being actively exploited in the wild?
It is possible that CVE-2020-10960 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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