Variant weakness
Incomplete
CWE-777: Regular Expression without Anchors
The product uses a regular expression to perform neutralization, but the regular expression is not anchored and may allow malicious or malformed data to slip through.
1
Recorded CVEs
With this primary weakness
0
KEVs
In the CISA KEV catalog
Medium
Likelihood of exploit
Per MITRE
Variant
Abstraction
MITRE classification
Overview
When performing tasks such as validating against a set of allowed inputs (allowlist), data is examined and possibly modified to ensure that it is well-formed and adheres to a list of safe values. If the regular expression is not anchored, malicious or malformed data may be included before or after any string matching the regular expression. The type of malicious data that is allowed will depend on the context of the application and which anchors are omitted from the regular expression.