Vulnerability Intelligence Report
XSS in Dart SDK
CVE-2021-22540
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.
No Active Exploit Signals
CVSS Base Score
6.1
MEDIUM
EPSS Probability:0.68%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-79 ↗CWE-79: Improper Neutralization of Input During Web Page Generation
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Google LLC | Dart SDK | stable < 2.12.3 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.681%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Google LLC · Vendor · USA |
| Reserved | 2021-01-05T00:00:00 |
| Published | 2021-04-22T14:15:17 |
| Last Updated | 2024-08-03T18:44:14 |
Community Chatter & Buzz