Project: flask-wtf

Language python
OSS-Fuzz project link
Project repository link
Build status: Fuzzers succeeding: Build log
Build status: Code coverage succeeding: Build log
Build status: Fuzz Introspector succeeding: Build log
Fuzzer count 1
Lines of code 26802
Lines covered 9039
Code coverage 33.73%
Code coverage report Report link
Static reachability 3.14%
Fuzz Introspector report Report link (from 2025-07-04)

Historical Progression

Functions of interest to fuzz

This section outlines functions that may be of interest to fuzz. They are based on ranking functions that have a lot of complexity but currently exhibit low code coverage. The complexity is calculated based on the function itself as well as the functions called by the given function, i.e. the tree of code that the function triggers.


This is only a minor amount of introspection information available for this project. Please consult the Fuzz Introspector report for more information, e.g. the introspection table of all functions in the target project available here.

Function name Function source file Accumulated cyclomatic complexity Code coverage
flask.app.Flask.__call__ flask.app 213 0.0%
flask.app.Flask.wsgi_app flask.app 210 0.0%
...fuzz_flask_wtf.fuzz_csrf ...fuzz_flask_wtf 139 0.0%
flask.app.Flask.full_dispatch_request flask.app 113 0.0%
flask.cli.ScriptInfo.load_app flask.cli 99 9.09%
flask.app.Flask.handle_exception flask.app 89 0.0%
flask.sansio.blueprints.Blueprint.register flask.sansio.blueprints 84 0.0%
wtforms.form.BaseForm.__init__ wtforms.form 68 0.0%
wtforms.widgets.core.Select.__call__ wtforms.widgets.core 66 0.0%
flask.sessions.SecureCookieSessionInterface.save_session flask.sessions 63 0.0%