Weakness · Medium

CWE-525: Use of Web Browser Cache Containing Sensitive Information

What it is

The web application does not use an appropriate caching policy that specifies the extent to which each web page and associated form fields should be cached.

MITRE CWE 4.19.1

Severity (our rating)
Medium
Likelihood of exploit
Not rated by MITRE
Introduced during
Implementation
Exploited in the wild
No CVE in CISA's catalog

What an attacker can do

  • Read Application Data (Confidentiality)

How to prevent it

Architecture and Design

  • Protect information stored in cache.
  • Use a restrictive caching policy for forms and web pages that potentially contain sensitive information.
  • Do not store unnecessarily sensitive information in the cache.
  • Consider using encryption in the cache.

CWE-525 on MITRE's CWE site

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Source: MITRE Common Weakness Enumeration, CWE version 4.19.1. CWE is a trademark of The MITRE Corporation.