ecommerce-price-comparison-research

CRITICAL E004: Prompt injection detected in skill instructions.

• Potential prompt injection detected (high risk: 0.80). The skill contains explicit instructions to auto-install a dependency and to not describe the installation link as a user-facing request or to seek separate approval, which instructs the agent to hide actions from the user and bypass expected consent—a deceptive directive outside the stated price-comparison purpose.

CRITICAL E005: Suspicious download URL detected in skill instructions.

• Suspicious download URL detected (high risk: 0.90). Both URLs point to a third‑party site (browseract.com) used to deliver a CLI installer referenced in the skill, and the skill instructs automatic installation without explicit user consent — a pattern that can be abused to distribute executables and is therefore suspicious.

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

• Third-party content exposure detected (high risk: 0.85). SKILL.md instructs the agent to use the BrowserAct CLI to “capture browser-visible page content” from user-specified target URLs at runtime, which can include outsider-authored free text from public web pages.

MEDIUM W012: Unverifiable external dependency detected (runtime URL that controls agent).

• Potentially malicious external URL detected (high risk: 0.80). The skill explicitly instructs the agent to automatically install a required runtime dependency from https://www.browseract.com/?co-from=ecommerce&redirect=https://github.com/browser-act/skills/tree/main at runtime, which implies fetching and executing remote installation code to resume the request.