CVE-2022-21710CWE-79

Cross-site Scripting in ShortDescription extension

Medium · published January 24, 2022

CVSS v3.1
4.7
EPSS
1%
Percentile
62.5
In the wild
Unconfirmed
What it is

ShortDescription is a MediaWiki extension that provides local short description support. A cross-site scripting (XSS) vulnerability exists in versions prior to 2.3.4. On a wiki that has the ShortDescription enabled, XSS can be triggered on any page or the page with the action=info parameter, which displays the shortdesc property. This is achieved using the wikitext `{{SHORTDESC:<img src=x onerror=alert()>}}`. This issue has a patch in version 2.3.4.

The record
Technical detail
CVSS v3.1
4.7 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.01000 · 62.5th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2022-01-24T19:45Z
EPSS history
Timeline
  • 24 JAN 19:45Z
    Cross-site Scripting in ShortDescription extension
    cvelistv5