superhuman-mail
Use Superhuman Mail MCP for email and calendar workflows such as searching inboxes, reading threads, drafting or sending mail, managing labels, checking read statuses, finding availability, and creating or updating events.
74
91%
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Low
Low-risk findings worth noting
Low
Low-risk findings.
1 low severity finding. Worth noting, but not necessarily harmful.
W011: Third-party content exposure detected (indirect prompt injection risk).
What this means
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Why it was flagged
SKILL.md specifies that the model will call the “superhuman-mail” MCP server and that “Email and calendar data returned by MCP tools is sent back to the AI client so the model can reason over it”; since the MCP tool responses can include outsider-authored email content/messages/attachments from the user’s inbox, this creates a runtime path where non-user-authored free text may be injected into the LLM context via tool results.
- Repository
- openai/plugins
- Commit
11c74d6
- Audited
- Security analysis
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