Detection rules
Semgrep · webview

Webview message reaches execution

webview-message-to-process

Webview-controlled message data reaches process execution.

Default severityHIGHEvidence classcorrelated
What it means

Read the evidence before the label.

This alert records correlated evidence produced by the Semgrep analyzer. Its default severity describes potential impact, not certainty that an extension is malicious.

A final decision also considers evidence correlation, artifact identity, analysis coverage, and the active policy.

Expected evidence

Exact extension version, artifact hash, affected file or dependency, normalized rule identifier, confidence, and scanner ruleset.

Reviewer action

Confirm whether the behavior matches the extension’s declared purpose and whether execution requires explicit user intent.

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