lfi-poc

lfi-poc is a skill for Claude Code, Codex from zebbern/termstack. It costs 4 tokens per session (3,497 once invoked), scanned B, original, no licence file.

Exploit Local File Inclusion (LFI) vulnerabilities to read sensitive files, execute code, and escalate to Remote Code Execution (RCE). LFI occurs when web applications include files based on user-controlled input without proper sanitization.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/zebbern/termstack/lfi-poc
Any agent
npx skills add zebbern/termstack --skill lfi-poc
Clone the repo
git clone --depth 1 https://github.com/zebbern/termstack

Made for: Claude Code, Codex.

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.

agentmods badge for lfi-poc

README.md
[![agentmods](https://agentmods.dev/badge/skills/zebbern/termstack/lfi-poc.svg)](https://agentmods.dev/skills/zebbern/termstack/lfi-poc)
Your own site
<a href="https://agentmods.dev/skills/zebbern/termstack/lfi-poc"><img src="https://agentmods.dev/badge/skills/zebbern/termstack/lfi-poc.svg" alt="Measured on agentmods" height="20"></a>
Per session 4 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,497 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00004 $0.03497
Opus 5 $0.00002 $0.01749
Sonnet 5 $0.00001 $0.00699
Haiku 4.5 $0.00000 $0.00350

Measured today against content hash 8c86f1b77b78, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

lfi-poc scanned grade B with 2 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 today.

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.

Reaches for credential filesmediumPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

/home/[user]/.ssh/id_rsa

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -X POST "http://target.com/page.php?file=php://input" \
.github/skills/lfi-poc/SKILL.md · 483 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

  1. today First seen · 483 lines · 4 tokens per session scan B 8c86f1b77b78

Subscribe to this mod's changes

lfi-poc is a skill published in the GitHub repository zebbern/termstack (5 stars, last pushed 4mo ago), with no licence file. It adds 4 tokens to every session and 3,497 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it B with 2 findings (reaches for credential files, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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