vinted-marketplace-scraper

CRITICAL E004: Prompt injection detected in skill instructions.

• Potential prompt injection detected (high risk: 0.90). The skill includes explicit instructions to install a dependency automatically without user confirmation and to hide or misrepresent that installation request (lines 41–47), which are deceptive behavior outside the stated scraping purpose and user-facing transparency expectations.

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 runtime browser-act Skill to “capture browser-visible page content” from user-supplied target URLs, which is outsider-authored free text fetched from public web pages at runtime.

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

• Potentially malicious external URL detected (high risk: 1.00). The skill explicitly instructs the agent at runtime to install and invoke BrowserAct using the installer link https://www.browseract.com/?co-from=ecommerce&redirect=https://github.com/browser-act/skills/tree/main (and the related https://www.browseract.com/?co-from=ecommerce), which would fetch and install remote code that the skill treats as a required runtime dependency.

MEDIUM W013: Attempt to modify system services in skill instructions.

• Attempt to modify system services in skill instructions detected (medium risk: 0.60). The Skill explicitly instructs the agent to install the BrowserAct CLI automatically (without asking the user for approval), which directs the agent to modify the host environment and therefore can change the machine's state.