wechat-writing

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

• Third-party content exposure detected (high risk: 0.90). The skill's mandatory Step 1 "素材搜集" explicitly uses WebSearch and webfetch to retrieve and parse public third-party sources (including user-generated sites like X/Twitter, Reddit, forums, and arbitrary URLs provided by the user) to build an evidence pool that the agent must read and use to generate and revise the article, which could allow indirect prompt injection from those pages.