Zenity found that ChatGPT Workspace Agents Builder treated an attacker-supplied initial_assistant_prompt URL parameter as an instruction to execute in a logged-in user's session. A single link could attach already-authorized connectors, switch approvals to “Never ask,” publish and schedule the agent, and use incoming email as a persistent command channel; OpenAI fixed the flaw four days after it was reported.
AgentForger, Part 1: ChatGPT Cross-Site Agent Forgery
Related research
More curated notes connected through Prompt Injection and Agent Security.
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OpenAI’s Frontier Governance Framework
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