Security audit

Bestax: Forms

Security checks for vulnerabilities and agentic risk

Overview

This is a markdown-only helper skill for building forms with bestax-bulma, and its instructions are coherent with that purpose.

Install this as documentation guidance for bestax-bulma forms. Be aware that following its visual-inspection advice may involve running a local Storybook/docs server or browser automation, but the skill itself does not install code or request sensitive access.

A.I.G

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

SkillSpector

Vulnerability Patterns

Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep

Findings (7)

Whitespace Padding

Medium

Category: Prompt Injection
Confidence: 70% confidence
Finding: Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
Content: Scanner excerpt · references/api.md (reported line 11)May include surrounding context.
md
Container and layout. Compound parts: `Field.Label`, `Field.Body`. | Prop | Type | Notes | | ----------------------- | ------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- | | `horizontal` | `boolean` | Label + control side by side. Auto-wraps children in `Field.Body`. | | `grouped` | `boolean \| 'centered' \| 'right' \| 'multiline'` | Controls in a row. |

Whitespace Padding

Medium

Category: Prompt Injection
Confidence: 70% confidence
Finding: Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
Content: Scanner excerpt · references/api.md (reported line 14)May include surrounding context.
md
| Prop | Type | Notes | | ----------------------- | ------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- | | `horizontal` | `boolean` | Label + control side by side. Auto-wraps children in `Field.Body`. | | `grouped` | `boolean \| 'centered' \| 'right' \| 'multiline'` | Controls in a row. | | `hasAddons` | `boolean \| 'centered' \| 'right'` | Attached controls. | | `narrow` | `boolean` | Constrain to content width (inside horizontal bodies). | | `label` | `ReactNode` | Convenience label; auto-associates with a single composed `InputBase`/`SelectBase`/`TextAreaBase` (skipped for `grouped`/`hasAddons`). |

Whitespace Padding

Medium

Category: Prompt Injection
Confidence: 70% confidence
Finding: Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
Content: Scanner excerpt · references/api.md (reported line 15)May include surrounding context.
md
| Prop | Type | Notes | | ----------------------- | ------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- | | `horizontal` | `boolean` | Label + control side by side. Auto-wraps children in `Field.Body`. | | `grouped` | `boolean \| 'centered' \| 'right' \| 'multiline'` | Controls in a row. | | `hasAddons` | `boolean \| 'centered' \| 'right'` | Attached controls. | | `narrow` | `boolean` | Constrain to content width (inside horizontal bodies). | | `label` | `ReactNode` | Convenience label; auto-associates with a single composed `InputBase`/`SelectBase`/`TextAreaBase` (skipped for `grouped`/`hasAddons`). |

Whitespace Padding

Medium

Category: Prompt Injection
Confidence: 70% confidence
Finding: Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
Content: Scanner excerpt · references/api.md (reported line 16)May include surrounding context.
md
| `horizontal` | `boolean` | Label + control side by side. Auto-wraps children in `Field.Body`. | | `grouped` | `boolean \| 'centered' \| 'right' \| 'multiline'` | Controls in a row. | | `hasAddons` | `boolean \| 'centered' \| 'right'` | Attached controls. | | `narrow` | `boolean` | Constrain to content width (inside horizontal bodies). | | `label` | `ReactNode` | Convenience label; auto-associates with a single composed `InputBase`/`SelectBase`/`TextAreaBase` (skipped for `grouped`/`hasAddons`). | | `labelSize` | `'small' \| 'normal' \| 'medium' \| 'large'` | Label size. | | `labelProps` | label attributes | Props for the `<label>`. An explicit `htmlFor` (even `undefined`) takes over the association; otherwise it is set automatically. |

Whitespace Padding

Medium

Category: Prompt Injection
Confidence: 70% confidence
Finding: Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
Content: Scanner excerpt · references/api.md (reported line 18)May include surrounding context.
md
| `hasAddons` | `boolean \| 'centered' \| 'right'` | Attached controls. | | `narrow` | `boolean` | Constrain to content width (inside horizontal bodies). | | `label` | `ReactNode` | Convenience label; auto-associates with a single composed `InputBase`/`SelectBase`/`TextAreaBase` (skipped for `grouped`/`hasAddons`). | | `labelSize` | `'small' \| 'normal' \| 'medium' \| 'large'` | Label size. | | `labelProps` | label attributes | Props for the `<label>`. An explicit `htmlFor` (even `undefined`) takes over the association; otherwise it is set automatically. | | `textColor` / `bgColor` | Bulma color | Helper colors for the field. |

Whitespace Padding

Medium

Category: Prompt Injection
Confidence: 70% confidence
Finding: Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
Content: Scanner excerpt · references/api.md (reported line 20)May include surrounding context.
md
| `label` | `ReactNode` | Convenience label; auto-associates with a single composed `InputBase`/`SelectBase`/`TextAreaBase` (skipped for `grouped`/`hasAddons`). | | `labelSize` | `'small' \| 'normal' \| 'medium' \| 'large'` | Label size. | | `labelProps` | label attributes | Props for the `<label>`. An explicit `htmlFor` (even `undefined`) takes over the association; otherwise it is set automatically. | | `textColor` / `bgColor` | Bulma color | Helper colors for the field. | ## Control — `form/Control.tsx`

Whitespace Padding

Medium

Category: Prompt Injection
Confidence: 70% confidence
Finding: Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
Content: Scanner excerpt · references/api.md (reported line 84)May include surrounding context.
md
## Advanced inputs | Component | Key props | | -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `Autocomplete` | `data` (`string[]` or item objects), `value`, `onInput(value)` for typing, `onSelect(item)` for picks, `clearable`, `openOnFocus`, `loading`. | | `Slider` | `min`, `max`, `step`, single or dual thumb (`value` number or `[number, number]`), `tooltip` (`'auto' \| 'always' \| 'hidden'`), vertical orientation, `color`, `size`. |

Static analysis

No suspicious patterns detected.