postmark-inbound

Warn

Audited by Snyk on May 19, 2026

Risk Level: MEDIUM
Full Analysis

MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).

  • Third-party content exposure detected (high risk: 0.90). The skill receives and processes untrusted, user-generated email content when "Postmark ... POST[s] parsed email data" to your webhook (SKILL.md "Receive JSON" and the Webhook Payload / references/payload-structure.md), and the workflow explicitly parses TextBody/StrippedTextReply, attachments, and MailboxHash to route, create tickets, run "command processing", and take follow-up actions—allowing third-party content to materially influence behavior.

Issues (1)

W011
MEDIUM

Third-party content exposure detected (indirect prompt injection risk).

Audit Metadata
Risk Level
MEDIUM
Analyzed
May 19, 2026, 12:52 AM
Issues
1
Security Audit — snyk — postmark-inbound