// For flags

CVE-2022-21710

Cross-site Scripting in ShortDescription extension

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

ShortDescription es una extensión de MediaWiki que proporciona soporte local para descripciones cortas. Se presenta una vulnerabilidad de tipo cross-site scripting (XSS) en versiones anteriores a 2.3.4. En un wiki que tenga la ShortDescription habilitada, un ataque de tipo XSS puede ser desencadenado en cualquier página o en la página con el parámetro action=info, que muestra la propiedad shortdesc. Esto es conseguido usando el wikitext "{SHORTDESC:<img src=x onerror=alert()>}}". Este problema presenta un parche en la versión 2.3.4

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-11-16 CVE Reserved
  • 2022-01-24 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mediawiki
Search vendor "Mediawiki"
 Shortdescription
Search vendor "Mediawiki" for product "Shortdescription"
 < 2.3.4
Search vendor "Mediawiki" for product "Shortdescription" and version " < 2.3.4"
mediawiki
Affected