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Encoding Transformations · passage 1 of 5

Encoding and Transformations

Text · Encoding Transformations/README.md

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> Encoding and Transformations are techniques that change how data is represented or transferred without altering its core meaning. Common examples include URL encoding, Base64, HTML entity encoding, and Unicode transformations. Attackers use these methods as gadgets to bypass input filters, evade web application firewalls, or break out of sanitization routines.

Source: Encoding Transformations/README.md in PayloadsAllTheThings. From PayloadsAllTheThings by Swissky and contributors. MIT License, Copyright (c) 2019 Swissky.

Every one of the 5 is a mark on the map. Named now: 1 to 5, reading order first.

  1. Encoding and Transformations§ 1text · README.md
  2. Unicode§ 2text · README.md
  3. Unicode Normalization§ 31 code block · README.md
  4. Punycode§ 42 code blocks · README.md
  5. Base64§ 51 code block · README.md

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Data as of 2026-11-14. CVE List through 2026-11-14 · EPSS of 2026-11-14 · CISA KEV checked 2026-11-14. Source: PayloadsAllTheThings by Swissky and contributors, MIT License. For authorised testing only. Use this via MCP

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