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ai security
Prompt injection is becoming the XSS of the web agent era
Researchers at UC Berkeley have identified Cross-Site Prompting (XSP) as a new attack vector that exploits autonomous web agents by injecting malicious prompts through untrusted content displayed on web pages, such as product reviews and advertisements. The attack mirrors Cross-Site Scripting (XSS) vulnerabilities in that it leverages mixed trusted and untrusted content to manipulate agent behavior. The team developed Prismata, a system designed to sit between a web agent and its targets to mitigate these risks.
Why it matters: Security teams deploying autonomous web agents need to understand this emerging injection threat and evaluate defenses like Prismata before agents process pages containing user-generated content or ads, as adversaries can now steer agent actions through visible text.
- Source published
- First seen by Cybersecurity Tracker