cache-deception
Web cache deception — trick CDN/proxy into caching authenticated responses under unauthenticated URLs, exposing PII to any visitor.
58
67%
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Critical
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tessl review fix ./packages/decepticon/decepticon/skills/standard/exploit/web/cache-deception/SKILL.mdSecurity
1 critical severity finding. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.
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
This document contains explicit, actionable exploit techniques and PoC code to force-cache authenticated responses and retrieve private/session data unauthenticated, enabling data exfiltration and account takeover.
Low
Low-risk findings.
1 low severity finding. Worth noting, but not necessarily harmful.
W011: Third-party content exposure detected (indirect prompt injection risk).
What this means
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Why it was flagged
The runtime workflow described is a cache-deception exploit using attacker-supplied requests (e.g., `curl`/Python fetching `$TARGET/account.css` and probing responses), which can ingest outsider-provided free text (attacker-controlled URLs/response bodies) into the agent/LLM context.
- Repository
- PurpleAILAB/Decepticon
- Commit
e34afba
- Audited
- Security analysis
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