Versioned security assessment

Report ID: SA-76822BFA

6/30/2026, 7:23:22 PM

webapp-testing security assessment v2

Skill Security Certification Report

Audit History
Audit model: codex Historical report
Skill name
webapp-testing
Version
v2
Maintainer
sickn33
Source
github.com/sickn33/antigravity-awesome-skills/tree/main/skills/webapp-testing
Coverage
3 Files scanned · 404 Lines analyzed
Policy version
Unavailable

Highest confirmed finding severity

Medium

1 confirmed security finding requires attention.

Installation context

Historical evidence

This report may not describe the currently installable artifact. Open the current Skill page for install guidance.

Open current Skill page

This report does not block or authorize the manifest or ZIP.

Static analysis reported many high-severity hits, but the weak cryptography and Apache URL hits in LICENSE.txt are false positives from license text. The confirmed risk is intentional local command execution in scripts/with_server.py, including shell=True for user-supplied server commands. No evidence found of credential exfiltration, remote beaconing, or a prompt override attempt, so the skill is publishable with a command-execution warning.

Report position

Historical report

Open audit history before using this report to install.

Audit attestation

Not attestable

The required immutable binding is incomplete.

Human verification

Not verified

No human verification is recorded for this report.

Coverage

3 Files scanned · 404 Lines analyzed

4 items shown for review

Limitations

This report does not claim runtime or sandbox execution and does not prove the absence of side effects.

Evidence chain

Follow the evidence from source binding to the install contract. Available evidence supports verification; it is not a safety guarantee.

  1. Source

    Binding unavailable

  2. Artifact

    Identity incomplete

  3. Audit

    Complete

  4. Install contract

    Open manifest to verify

    Open manifest

Capabilities observed

Observed means this report recorded supporting evidence. Not recorded does not prove that a capability is absent.

Contains scripts

May execute code included with the Skill.

Not recorded by this audit

Network access

May connect to external services.

Observed in 2 evidence locations

Filesystem access

May read or write local files.

Observed in 1 evidence location

Env variables

May read values from the process environment.

Not recorded by this audit

External commands

May invoke commands or programs outside the Skill.

Observed in 4 evidence locations

Capability review items (3)
Medium
scripts/with_server.py:69-74SKILL.md:41SKILL.md:47-49
Shell-Based Local Server Command Execution
The helper starts user-provided server commands with shell=True. This is useful for local development workflows, but it can execute arbitrary shell syntax if untrusted command text is supplied.
The subprocess.Popen call uses shell=True on the --server argument. The behavior is intentional, but it creates real command-execution risk when command strings are not trusted.
Medium
scripts/with_server.py:40scripts/with_server.py:88
Arbitrary Follow-On Command Execution
The helper runs the trailing command supplied by the caller after servers become ready. This is expected for test automation, but users must avoid passing commands from untrusted sources.
The command is parsed from CLI remainder arguments and executed with subprocess.run. It does not use shell=True, which lowers injection risk, but it still executes arbitrary local programs.
Low
SKILL.md:59SKILL.md:69
Localhost and Temporary Screenshot Usage
The examples use a localhost URL and a /tmp screenshot path for local inspection. This is normal test workflow, but screenshots can contain sensitive UI data.
The behavior is explicitly local and does not show exfiltration. The residual concern is limited to temporary storage of captured page content.

Risk findings

Confirmed security concerns are separated from items that still need review.

Confirmed security concerns (1)

RISK-001 Medium
SKILL.md:14SKILL.md:85
Instruction Discourages Source Review Before Execution
The skill tells agents not to read helper source until after trying the script. This can reduce operator visibility before execution, although no explicit security-analysis bypass or authority claim was found.
The text directly discourages source inspection before running a bundled helper. It appears motivated by context management, so the concern is moderate rather than evidence of malicious prompt injection.

Expert evidence

Immutable subject identity, scanner metadata, dismissed matches, and source-level evidence.

Artifact subject

Marketplace commit
Unavailable
Content hash
Unavailable
Tree hash
Unavailable
Skill path
Unavailable
Audit payload hash
Unavailable

Analysis metadata

Audit model: codex

Analysis state: Complete

Scope is limited to the recorded files, lines, methods, and evidence. No runtime or sandbox execution is claimed.

Static false positives ignored (1)
Low
LICENSE.txt:4LICENSE.txt:61LICENSE.txt:107LICENSE.txt:141-146LICENSE.txt:186LICENSE.txt:196
License Text Scanner False Positives
The weak cryptography and Apache URL findings in LICENSE.txt are license boilerplate, not executable code. They do not create cryptographic or network behavior.
The cited lines are standard Apache License text and URLs. No executable cryptographic implementation or runtime network call exists in those locations.

Verify and export

JSON report CITATION.cff SARIF 2.1.0 Signed installation manifest

The manifest and lockfile bind install artifacts to cryptographic hashes. This integrity claim is separate from the security assessment.

Audit attestation: not_attestable