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Injection and Smuggling · payload topic

Encoding Transformations

5 passages · 4 code blocks

Every mark is a titled passage of this topic's pages, in reading order; the brighter ones carry code. For testing systems you own or are authorised to test, and for defending them. Nothing here is run by this page.

Open Encoding Transformations on GitHub

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 we…

Source: 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

Zoom in on the map and the dots under the middle of it are named where they are.

Data as of 2026-11-14. CVE List through 2026-11-14 · EPSS of 2026-11-13 · CISA KEV checked 2026-11-14. Source: PayloadsAllTheThings by Swissky and contributors, MIT License. For authorised testing only.

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