// For flags

CVE-2021-22540

XSS in Dart SDK

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Bad validation logic in the Dart SDK versions prior to 2.12.3 allow an attacker to use an XSS attack via DOM clobbering. The validation logic in dart:html for creating DOM nodes from text did not sanitize properly when it came across template tags.

Una mala lógica de comprobación en el Dart SDK versiones anteriores a 2.12.3 permite a un atacante usar un ataque de tipo XSS por medio de DOM clobbering. La lógica de comprobación en dart: html para crear nodos DOM a partir de texto no se saneaban apropiadamente cuando se encontraba con etiquetas de plantilla

*Credits: Vincenzo di Cicco
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
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
  • 2021-01-05 CVE Reserved
  • 2021-04-22 CVE Published
  • 2024-01-06 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
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
Dart
Search vendor "Dart"
 Dart Software Development Kit
Search vendor "Dart" for product "Dart Software Development Kit"
 < 2.12.3
Search vendor "Dart" for product "Dart Software Development Kit" and version " < 2.12.3"
-
Affected