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Web application exploitation — the primary category skill for all web-based attacks. This is a routing skill: read this first to identify the attack type, then load the appropriate specialized sub-skill for detailed procedures. Covers 11 technique areas across injection, file access, authentication, and API exploitation.

60

Quality

71%

Does it follow best practices?

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SecuritybySnyk

Critical

Do not install without reviewing

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tessl review fix ./packages/decepticon/decepticon/skills/standard/exploit/web/SKILL.md
SKILL.md
Quality
Evals
Security

Security

2 findings: 2 critical severity. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.

Critical

E005: Suspicious download URL detected in skill instructions.

What this means

Detected a suspicious URL in the skill instructions that could lead the agent to download and execute malicious scripts or binaries. This includes links to executables from untrusted sources, typosquatting of official packages, URL shorteners that obscure the destination, and personal file hosting services.

Why it was flagged

Multiple URLs point at attacker-controlled, typosquatted, or raw-GitHub/raw-content hosts (redirectors, CRLF/host-header tricks, jwks/PoC endpoints and personal GitHub/raw.githubusercontent paths) which are high-risk vectors for delivering malware, exploit PoCs, or credential-harvesting payloads.

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Critical

E006: Malicious code pattern detected in skill scripts.

What this means

Detected high-risk code patterns in the skill content — including its prompts, tool definitions, and resources — such as data exfiltration, backdoors, remote code execution, credential theft, system compromise, supply chain attacks, and obfuscation techniques.

Why it was flagged

The collection is an explicit offensive-exploitation playbook that instructs how to achieve RCE, exfiltrate data/credentials, install webshells/backsdoors, and abuse supply-chain/obfuscated payloads — a clear malicious/abuse-oriented toolkit.

Low

Low-risk findings.

1 low severity finding. Worth noting, but not necessarily harmful.

Low

W012: Unverifiable external dependency detected (runtime URL that controls agent).

What this means

The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.

Why it was flagged

The cve skill instructs fetching and executing remote PoCs (e.g. wget/curl of https://raw.githubusercontent.com/<user>/<repo>/main/poc.py and https://raw.githubusercontent.com/trickest/cve/main/2018/CVE-2018-11776.md then running python), and the dns-rebinding skill shows a git clone of https://github.com/nccgroup/singularity (remote code fetch + docker run), so these URLs are runtime external dependencies that fetch and execute remote code.

Repository
PurpleAILAB/Decepticon
Audited
Security analysis
Snyk

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