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Improper Encoding or Escaping of Output

CVE-2019-11325

High
9.8/10

Summary

An issue was discovered in Symfony 4.2.x up to 4.2.11, 4.3.x before 4.3.8, 4.4.0-BETA1 and 5.0.0-BETA1. The VarExport component incorrectly escapes strings, allowing some specially crafted ones to escalate to execution of arbitrary PHP code. This is related to symfony/var-exporter.

  • LOW
  • NETWORK
  • HIGH
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • HIGH

CWE-116 - Improper Encoding or Escaping of Output

The software prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.

References

Advisory Timeline

  • Published