// HackTricks · Web Pentesting

Cypher Injection (Neo4j)

Cypher Injection (Neo4j)

Cypher injection occurs when an application constructs a Neo4j Cypher query by concatenating untrusted input. An attacker may alter the query structure to read or modify graph data and, depending on enabled procedures and cloud integrations, reach additional secrets or services.[1][2]

Use parameterized queries for values and allowlist any identifiers or query fragments that cannot be parameterized. The references below contain practical discovery and exploitation examples.[1][2]

References

☧ CPTS · ordered posts

Locked

Unlock with your Main_Key through local GPG.

Start the local GPG helper

In your cheatsheet checkout, run:

npm run unlock:helper

Open the link it prints, or paste its pairing code below. Keep the terminal open until GPG finishes.

Import an index you already decrypted

Download the encrypted index, then decrypt with GPG:

gpg --output report-index.json --decrypt report-index.gpg

Your private key stays in GPG. The decrypted index is saved in this browser so you can reopen it after navigation, refreshes and restarts. Lock this browser or clear this site's browser data to remove the saved index. Nothing is uploaded.