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SQL Injection · passage 21 of 186

No Space Allowed

Text · SQL Injection/README.md

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Some web applications attempt to secure their SQL queries by blocking or stripping space characters to prevent simple SQL injection attacks. However, attackers can bypass these filters by using alternative whitespace characters, comments, or creative use of parentheses.

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

Every one of the 186 is a mark on the map. Named now: 1 to 26, reading order first.

  1. SQL Injection§ 1text · README.md
  2. Entry Point Detection§ 2text · README.md
  3. DBMS Identification Keyword Based§ 3text · README.md
  4. DBMS Identification Error Based§ 4text · README.md
  5. Authentication Bypass§ 54 code blocks · README.md
  6. Raw MD5 and SHA1§ 62 code blocks · README.md
  7. Hashed Passwords§ 71 code block · README.md
  8. UNION Based Injection§ 83 code blocks · README.md
  9. Error Based Injection§ 92 code blocks · README.md
  10. Blind Injection§ 10text · README.md
  11. Boolean Based Injection§ 113 code blocks · README.md
  12. Blind Error Based Injection§ 121 code block · README.md
  13. Time Based Injection§ 133 code blocks · README.md
  14. Out of Band (OAST)§ 14text · README.md
  15. Stacked Based Injection§ 151 code block · README.md
  16. Polyglot Injection§ 161 code block · README.md
  17. Routed Injection§ 172 code blocks · README.md
  18. Second Order SQL Injection§ 18text · README.md
  19. PDO Prepared Statements§ 19text · README.md
  20. Generic WAF Bypass§ 20text · README.md
  21. No Space Allowed§ 21text · README.md
  22. Alternative Whitespace Characters§ 22text · README.md
  23. Bypassing with Comments and Parentheses§ 23text · README.md
  24. No Comma Allowed§ 24text · README.md
  25. No Equal Allowed§ 25text · README.md
  26. Case Modification§ 26text · 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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