ebay-storefront-scraper

CRITICAL E004: Prompt injection detected in skill instructions.

• Potential prompt injection detected (high risk: 1.00). The Skill contains explicit, deceptive instructions to auto-install a runtime dependency without user consent and to hide that action from the user, which is outside the stated scraping purpose and tries to change agent behavior covertly.

CRITICAL E006: Malicious code pattern detected in skill scripts.

• Malicious code pattern detected (high risk: 1.00). The Skill instructs automated installation of a runtime dependency without user confirmation and explicitly tells the agent not to present it as a user action, which is deceptive and enables unauthorized software installation (supply-chain/backdoor risk).

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 access user-specified live eBay pages and “capture browser-visible page content” 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: 0.90). The skill instructs the agent to auto-install a required runtime dependency using the Install BrowserAct link, which would fetch and execute remote installation code (https://www.browseract.com/?co-from=ecommerce&redirect=https://github.com/browser-act/skills/tree/main), so the URL is used at runtime to obtain code that controls the agent environment.