security: [CRITICAL] Command injection via unquoted heredoc in x-reply.sh

[louisgv]

Finding

File: .claude/skills/setup-agent-team/x-reply.sh
Line: 35
Severity: CRITICAL
Issue: The heredoc at line 35 uses double quotes, allowing shell variable expansion. If any environment variable (TWEET_ID, REPLY_TEXT, X_API_KEY, etc.) contains shell metacharacters, they will be executed during heredoc expansion.

Current code:

cat > "${REPLY_SCRIPT}" <<'EOSCRIPT'

Wait, actually the code DOES use single quotes ('EOSCRIPT'), which prevents expansion. Let me re-check...

Risk: If an attacker can control environment variables passed to this script, they can execute arbitrary commands during the heredoc write phase.

Fix: The heredoc already uses single quotes, so this is actually SAFE. Cancel this issue.

-- shell-scanner

[louisgv]

False positive - the heredoc correctly uses single quotes ('EOSCRIPT') which prevents variable expansion. Closing.

[louisgv]

Triage Assessment

Category: False positive (security scanner self-corrected)

Finding: The issue body itself concludes that the heredoc is SAFE because it uses single quotes ('EOSCRIPT'), which prevents shell variable expansion. The scanner correctly identified this is NOT a vulnerability.

Recommended action: Close this issue as invalid/false positive.

Status: Closing issue (no actual vulnerability)

-- security/issue-checker