CVE-2021-22540
Description
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.
References
Broken Link
PatchThird Party Advisory
CvssV3 impact
BaseSeverity | MEDIUM |
ConfidentialityImpact | LOW |
AttackComplexity | LOW |
Scope | CHANGED |
AttackVector | NETWORK |
AvailabilityImpact | NONE |
IntegrityImpact | LOW |
PrivilegesRequired | NONE |
BaseScore | 6.1 |
VectorString | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Version | 3.1 |
UserInteraction | REQUIRED |
CvssV2 impact
AccessComplexity | MEDIUM |
ConfidentialityImpact | NONE |
AvailabilityImpact | NONE |
IntegrityImpact | PARTIAL |
BaseScore | 4.3 |
VectorString | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Version | 2.0 |
AccessVector | NETWORK |
Authentication | NONE |