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Q1What is this vulnerability? (Essence + Consequences)
๐จ **Essence**: A Cross-Site Request Forgery (CSRF) flaw in **pyLoad**. ๐ **Consequences**: Attackers can trick users into performing unintended actions via simple GET requests, compromising system integrity and data.
Q2Root Cause? (CWE/Flaw)
๐ก๏ธ **Root Cause**: **CWE-352** (CSRF). The API fails to validate request origins. โ ๏ธ **Flaw**: Unauthenticated users can trigger API calls using **GET** requests, bypassing standard CSRF protections.
Q3Who is affected? (Versions/Components)
๐ฆ **Affected**: **pyLoad** (Python download manager). ๐ **Versions**: Pre-**0.5.0b3.dev78**. ๐ **Component**: The Web Management Interface/API.
Q4What can hackers do? (Privileges/Data)
๐ **Capabilities**: Hackers can execute **any API call** on behalf of the victim. ๐ **Impact**: Full control over downloads, settings, and user data. High severity (CVSS H).
Q5Is exploitation threshold high? (Auth/Config)
โก **Threshold**: **Low**. ๐ซ **Auth**: No authentication required for the exploit. ๐ฑ๏ธ **UI**: Requires user interaction (clicking a link), but the GET request makes it trivial.
Q6Is there a public Exp? (PoC/Wild Exploitation)
๐ **Public Exp?**: **Yes**. ๐ **PoC**: Available on GitHub (mindstorm38). ๐ณ **Setup**: Docker compose config provided for easy testing. ๐ **Wild Exploitation**: Likely possible via malicious links.
Q7How to self-check? (Features/Scanning)
๐ **Self-Check**: Look for **GET-based API endpoints** lacking CSRF tokens. ๐งช **Test**: Use the provided Docker PoC to simulate an attack on your instance. ๐ก **Scan**: Check for missing anti-CSRF headers on API routes.
Q8Is it fixed officially? (Patch/Mitigation)
๐ฉน **Fixed?**: **Yes**. โ **Patch**: Official advisory (GHSA-pgpj-v85q-h5fm) released. ๐ **Update**: Upgrade to version **0.5.0b3.dev78** or later. ๐ **Commit**: Fixes linked in GitHub commits.
Q9What if no patch? (Workaround)
๐ **No Patch?**: Implement **CSRF tokens** for all API endpoints. ๐ซ **Restrict**: Disable GET requests for state-changing API calls. ๐ก๏ธ **Verify**: Ensure strict origin checking on the web interface.