Weakness · High
CWE-349: Acceptance of Extraneous Untrusted Data With Trusted Data
What it is
The product, when processing trusted data, accepts any untrusted data that is also included with the trusted data, treating the untrusted data as if it were trusted.
- Severity (our rating)
- High
- 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
- Bypass Protection Mechanism (Access Control, Integrity)
- Modify Application Data (Access Control, Integrity)
How to prevent it
MITRE lists no specific mitigation for this weakness. Treat it like its parent weaknesses below: validate input, keep the design simple and review the code where it could appear.
H2 Security
Found it in your code?
We review where it appears, fix it with your team, and check it was not already used against you.
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Start freeSource: MITRE Common Weakness Enumeration, CWE version 4.19.1. CWE is a trademark of The MITRE Corporation.