A security add-on containing a read-only check for the October 2026 PHP vulnerabilities known as php2shell. It checks PHP binaries, project files, and configuration stopgaps, then describes possible fixes.

Use it to review PHP installations and web-serving projects for the two listed CVEs and plan remediation.

It helps teams assess exposure to serious PHP vulnerabilities without making changes during the check.

security — Plugin for Claude Code by anton-abyzov/vskill

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/anton-abyzov/vskill

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/anton-abyzov/vskill/security/github.svg)](https://agentmods.dev/plugins/anton-abyzov/vskill/security)

Your own site

<a href="https://agentmods.dev/plugins/anton-abyzov/vskill/security"><img src="https://agentmods.dev/badge/plugins/anton-abyzov/vskill/security/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/anton-abyzov/vskill/security"><img src="https://agentmods.dev/badge/plugins/anton-abyzov/vskill/security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured The manifest loads nothing itself; its 1 skill cost 261 tokens a session between them.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

security scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 16d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/security/.claude-plugin/plugin.json · 15 lines

What it actually says

{
  "name": "security",
  "description": "Security response checks — php2shell-check: read-only exposure check for the October 2026 PHP emergency patch (CVE-2026-109618, CVE-2026-109619) across installed PHP binaries, project files and ini stopgaps, with a per-branch fix plan.",
  "version": "0.1.0",
  "author": {
    "name": "Anton Abyzov",
    "email": "[email protected]",
    "url": "https://github.com/anton-abyzov/vskill"
  },
  "homepage": "https://github.com/anton-abyzov/vskill",
  "repository": "https://github.com/anton-abyzov/vskill",
  "license": "MIT",
  "keywords": ["security", "php", "php2shell", "cve", "CVE-2026-109618", "CVE-2026-109619", "php-fpm", "patch", "vulnerability"]
}

Contents

What it installs

The manifest is a name and a version. 1 skill travel with it, and installing the plugin installs all of them — 261 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Skill php2shell-check A 261 tokens

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

16d ago First seen · 15 lines scan A 0f5f3f8aebfc

Subscribe to this mod's changes

security is a plugin published in the GitHub repository anton-abyzov/vskill (47 stars, last pushed 3d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-22.

Claude Code Security ai ai-agents cli copilot cursor

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