What is CWE-303?
The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.
Analyzing data...
CWE-303: Incorrect Implementation of Authentication Algorithm
Data statistics
OWASP TOP 10:2025 RANK7 — A07:2025 — Authentication Failures
RELATED CVES (365 DAYS)30
ABSTRACTIONBase
Vulnerabilities mapped to CWE-303
30 vulnerabilities500% increase year over year
Vulnerabilities in CISA KEV for CWE-303
0 vulnerabilities
The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.
This incorrect implementation may allow authentication to be bypassed.
Characteristics
Modes of introduction
- Implementation: REALIZATION: This weakness is caused during implementation of an architectural security tactic.
Common consequences
| Impact | Scope | Explanation |
|---|---|---|
| Bypass Protection Mechanism | Access Control | — |
Representative vulnerabilities
Below are representative vulnerabilities related to this CWE, prioritized by severity.
Sources (2)
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