Misconfiguration and Insecure Design · payload topic
External Variable Modification
6 passages · 7 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 External Variable Modification on GitHubExternal Variable Modification Vulnerability occurs when a web application improperly handles user input, allowing attackers to overwrite internal variables. In PHP, functions like extract($GET), extract($POST), or importrequestvariables() can be abused if they import user-controlled data into the…
Source: PayloadsAllTheThings. From PayloadsAllTheThings by Swissky and contributors. MIT License, Copyright (c) 2019 Swissky.
Every one of the 6 is a mark on the map. Named now: 1 to 6, reading order first.
- External Variable Modification
- Methodology
- Overwriting Critical Variables
- Poisoning File Inclusion
- Global Variable Injection
- Remediations
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.