The description above is MITRE’s definition of CWE-1284 in CWE 4.20, a base-level weakness.
Common consequences MITRE lists
- Other, Integrity, Availability: Varies by Context; DoS: Resource Consumption (CPU); Modify Memory; Read Memory
Guides on this site
Fuzz a parser and turn crashes into lasting regressions
Build a narrow harness, observe memory and resource failures, minimize the input, and test the repaired parser.
Prevent business-logic flaws with server-side invariants
Recompute prices on the server, run workflows as state machines, build reset links from configuration, limit valuable flows, and turn each business rule into an invariant that the database and the tests both check.
Practice
- Business logic lab: Price an order without trusting the client · Browser lab
- Parse bounded JSON and XML invoices safely · Local project
- Repair a native parser using sanitizer evidence · Local project
References
This page is generated from MITRE’s CWE 4.20 catalogue (released 30 April 2026) and lists every guide, fix card and lab here that cites CWE-1284.
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