CWE-794: Incomplete Filtering of Multiple Instances of Special Elements
The product receives data from an upstream component, but does not filter all instances of a special element before sending it to a downstream component.
How it's found
Incomplete Filtering of Multiple Instances of Special Elements is a specific, narrowly defined instance of a broader pattern. Testers confirm it with targeted code review and a proof-of-concept input that exercises the exact code path this weakness describes.
Incomplete filtering of this nature may be applied to:sequential elements (special elements that appear next to each other) or non-sequential elements (special elements that appear multiple times in different locations).
Consequences
- Unexpected State
Where this fits in a TurboPentest engagement
TurboPentest's agentic pentest is powerful and covers a broad range of issues automatically. This particular class is best confirmed in a manual IntegSec engagement, where human pentesters apply deeper methodology and a larger context window than any automated pass.
Frequently asked questions
What is CWE-794?
The product receives data from an upstream component, but does not filter all instances of a special element before sending it to a downstream component.
How do you find Incomplete Filtering of Multiple Instances of Special Elements?
Incomplete Filtering of Multiple Instances of Special Elements is a specific, narrowly defined instance of a broader pattern. Testers confirm it with targeted code review and a proof-of-concept input that exercises the exact code path this weakness describes.
What is the impact of CWE-794?
Unexpected State
Does TurboPentest test for Incomplete Filtering of Multiple Instances of Special Elements?
TurboPentest's agentic pentest is powerful and covers a broad range of issues automatically. This particular class is best confirmed in a manual IntegSec engagement, where human pentesters apply deeper methodology and a larger context window than any automated pass.
Related CWEs
Find these issues before an attacker does
TurboPentest runs an agentic AI pentest against your target and reports findings with proof, from $99 per target.
Start a $99 pentest