flippingbook

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

• Third-party content exposure detected (high risk: 0.70). The skill's SKILL.md instructs the agent to use Membrane actions and the proxy (e.g., "membrane action run" and "membrane request CONNECTION_ID /path/to/endpoint") to fetch FlippingBook publications and sources (user-uploaded/public flipbooks), which are untrusted third-party content the agent is expected to read and which can influence subsequent actions (e.g., update/delete/customize publications).