Individual skill
hunt-cache-poison
Hunting skill for cache poison vulnerabilities. Built from 10 public bug bounty reports including X-Forwarded-Host poisoning, X-HTTP-Method-Override / GCS cache, reflected→stored XSS via cache, classic Omer-Gil Web Cache Deception, Cloudflare Cache Deception Armor bypass, session-token cache deception, Akamai hop-by-hop smuggling → server-side edge poisoning, and Kettle's 2024 path-normalization WCD against Cloudflare/Fastly/GCP. Host/X-Forwarded-Host injection that reaches app logic (reset-link poisoning, routing SSRF, OAuth issuer) is owned by hunt-host-header; this skill owns the case where the poisoned response is CACHED and served to other users. Use when hunting cache poisoning, Web Cache Deception, CDN-fronted apps.
skills/hunt-cache-poison/SKILL.md
Source commit d67cc00d9297a15b9210121e0a93c33f9fb6be46
What was checked
- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
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Repository context
- Repository stars (not skill ratings)
- 5,504
- Repository last updated
- Nov 8, 2026
- License
- MIT
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- ai-security Repository topic
- anthropic Repository topic
- application-security Repository topic
- bug-bounty Repository topic
- bugbounty Repository topic
- bugcrowd Repository topic
- claude Repository topic
- claude-code Repository topic
- claude-skills Repository topic
- ethical-hacking Repository topic
- engineering Derived category
- security Derived category
- security-application Derived category
Files and excerpt
File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.
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## Crown Jewel Targets
Cache poisoning is high-value because a single poisoned cache entry can affect thousands or millions of victims simultaneously — one request, mass exploitation. Payout scales with blast radius.
**Highest-value targets:**
- **CDN-served assets** (cdn.shopify.com, cloudfront distributions, Fastly/Akamai edges) — poisoning these affects every visitor globally
- **E-commerce platforms** with affiliate/referral flows (Shopify, WooCommerce storefronts) — session hijack or affiliate fraud potential
- **Gaming platforms with update servers** (rockstargames updates.* domains) — DoS on update delivery = widespread client breakage
- **Authentication endpoints** served through caches — leads to account takeover (the highest severity variant)
- **Asset CDNs** (JS/CSS delivery) — XSS payload delivery at scale
- **SaaS multi-tenant platforms** — one poisoned response bleeds into all tenants sharing a cache key
**Asset types that pay most:** CDN hostnames, subdomain-per-tenant patterns, update/download servers, login/account pages cached incorrectly, affiliate link shorteners.
