CWE-804 - Guessable CAPTCHA
- Abstraction:Base
- Structure:Simple
- Status:Incomplete
- Release Date:2010-02-16
- Latest Modification Date:2023-10-26
Weakness Name
Guessable CAPTCHA
Description
The product uses a CAPTCHA challenge, but the challenge can be guessed or automatically recognized by a non-human actor.
An automated attacker could bypass the intended protection of the CAPTCHA challenge and perform actions at a higher frequency than humanly possible, such as launching spam attacks. There can be several different causes of a guessable CAPTCHA:
Common Consequences
Scope: Access Control, Other
Impact: Bypass Protection Mechanism, Other
Notes: When authorization, authentication, or another protection mechanism relies on CAPTCHA entities to ensure that only human actors can access certain functionality, then an automated attacker such as a bot may access the restricted functionality by guessing the CAPTCHA.
