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Improper Input Validation

CVE-2021-37863

Medium
5.7/10

Summary

Mattermost upto v6.0.4 and earlier fails to sufficiently validate parameters during post creation, which allows authenticated attackers to cause a client-side crash of the web application via a maliciously crafted post.

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

CWE-20 - Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References

Advisory Timeline

  • Published