hallmark

Warn

Audited by Snyk on Jun 21, 2026

Risk Level: MEDIUM
Full Analysis

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

  • Third-party content exposure detected (high risk: 0.85). In hallmark study URL mode, the skill performs runtime WebFetch of a user-supplied URL and parses the returned HTML/CSS to extract design facts, which can include outsider-authored free text (e.g., page body/copy) that is then ingested into the agent’s LLM context for diagnosis/build.

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

  • Potentially malicious external URL detected (high risk: 0.80). The skill's "hallmark study" verb explicitly WebFetches user-supplied http:// or https:// URLs at runtime and parses their HTML/CSS as input to produce a diagnosis and (optionally) to "build with this DNA", meaning remote page content can directly influence the agent's prompts/output (user-supplied http(s) URLs fetched via WebFetch).

Issues (2)

W011
MEDIUM

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

W012
MEDIUM

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

Audit Metadata
Risk Level
MEDIUM
Analyzed
Jun 21, 2026, 03:54 PM
Issues
2
Security Audit — snyk — hallmark