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Security audit

Form Handling

Security checks for vulnerabilities and agentic risk

Overview

This is a straightforward form-handling guidance skill with no executable code, persistence, credential access, or hidden behavior.

This skill is reasonable to install for complex frontend form work. Be aware that its trigger wording is somewhat broad, so it may activate on generic form-related requests; users or publishers may want to narrow the trigger description if precise routing matters.

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs
Vulnerability Patterns
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (7)

Skill Enumeration

Medium
Category
Agent Snooping
Confidence
80% confidence
Finding

Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Content

Scanner excerpt · README.md (reported line 10)May include surrounding context.

md
- ID: `fec-form-handling`
- Category: `implementation-capability`
- Version: `2.9.0`
- Source: `skills/fec-form-handling/SKILL.md`

## Description

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The usage guidance says to use the skill for broad terms including "form" and the phrase "Chinese triggers include form," which are too generic and likely to overlap with ordinary conversation or many unrelated tasks. The description also lacks clear trigger constraints or negative examples for those trigger terms beyond excluding only trivial 1-3 field forms.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The manifest description states that 'Chinese triggers include form, form validation, dynamic fields' but does not offer an opt-in, alternative language handling, or justification for a language-specific constraint. This can create a language/locale policy issue because the skill behavior is partially keyed to a specific language without documented user choice.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The description contains very broad activation terms such as 'form' and 'form validation', which are common across many ordinary development requests. In skill-routing systems, this can cause the skill to be invoked outside its intended boundary, increasing the chance of irrelevant guidance, prompt-surface expansion, or accidental precedence over more appropriate skills.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The manifest description says the skill should be used for forms and notes Chinese triggers including "form" and related generic terms. In a manifest, such short and common trigger words are ambiguous and could match many unrelated conversations, and the description does not provide explicit negative examples or a narrow activation context beyond a partial exclusion for trivial forms.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
87% confidence
Finding

The README explicitly specifies "Chinese triggers" without indicating that language selection is optional or user-configurable. This can constitute a language/locale policy issue because it privileges a specific language behavior without documenting opt-in or a region-specific need.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
80% confidence
Finding

The manifest explicitly calls out "Chinese triggers include ...", which introduces a language-specific behavior in the skill metadata. There is no indication that this language handling is optional, user-selected, or required for a region-specific purpose.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.