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MEDIUM · 4.8

CVE-2021-42048

An issue was discovered in the Growth extension in MediaWiki through 1.36.2. Any admin can add arbitrary JavaScript code to the Newcomer home page footer, which can be executed by viewers with zero ed...

Vulnerability Description

An issue was discovered in the Growth extension in MediaWiki through 1.36.2. Any admin can add arbitrary JavaScript code to the Newcomer home page footer, which can be executed by viewers with zero edits.

CVSS Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
MediawikiMediawiki<= 1.36.2

Related Weaknesses (CWE)

CWE-79

References

FAQ

What is CVE-2021-42048?

CVE-2021-42048 is a vulnerability with a CVSS score of 4.8 (MEDIUM). An issue was discovered in the Growth extension in MediaWiki through 1.36.2. Any admin can add arbitrary JavaScript code to the Newcomer home page footer, which can be executed by viewers with zero ed...

How severe is CVE-2021-42048?

CVE-2021-42048 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-42048?

Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki.