CVE-2021-39186CWE-20

Improper Input Validation in GlobalNewFiles

Medium · published September 1, 2021

CVSS v3.1
4.3
EPSS
1%
Percentile
62.7
In the wild
Unconfirmed
What it is

GlobalNewFiles is a MediaWiki extension maintained by Miraheze. Prior to commit number cee254e1b158cdb0ddbea716b1d3edc31fa4fb5d, the username column of the GlobalNewFiles special page is vulnerable to a stored XSS. Commit number cee254e1b158cdb0ddbea716b1d3edc31fa4fb5d contains a patch. As a workaround, one may disallow <,> (or other characters required to insert html/js) from being used in account names so an XSS is not possible.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.01006 · 62.7th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2021-09-01T20:35Z
EPSS history
Timeline
  • 01 SEP 20:35Z
    Improper Input Validation in GlobalNewFiles
    cvelistv5