User Controllable JavaScript Event (XSS)
- Risk:
Informational
- Type:
- Passive
- CWE:
- 20
- Summary
- This check looks at user-supplied input in query string parameters and POST data to identify where certain HTML attribute values might be controlled. This provides hot-spot detection for XSS (cross-site scripting) that will require further review by a security analyst to determine exploitability.
- Solution
- Validate all input and sanitize output it before writing to any Javascript on* events.
- Other info
- User-controlled javascript event(s) was found. Exploitability will need to be manually determined. The page at the following URL: http://example.com/i.php?place=moon&name=Foo includes the following Javascript event which may be attacker-controllable: User-input was found in the following data of an [onerror] event: foo The user input was: foo