CWE-804: Guessable CAPTCHA
ID
CWE-804
Abstraction
Base
Structure
Simple
Status
Incomplete
Number of CVEs
3
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:
- An audio or visual image that does not have sufficient distortion from the unobfuscated source image.
- A question is generated with a format that can be automatically recognized, such as a math question.
- A question for which the number of possible answers is limited, such as birth years or favorite sports teams.
- A general-knowledge or trivia question for which the answer can be accessed using a data base, such as country capitals or popular entertainers.
- Other data associated with the CAPTCHA may provide hints about its contents, such as an image whose filename contains the word that is used in the CAPTCHA.
Modes of Introduction
| Phase | Note |
|---|---|
| Architecture and Design | |
| Implementation |
Applicable Platforms
| Type | Class | Name | Prevalence |
|---|---|---|---|
| Language | Not Language-Specific | ||
| Technology | Web Server |
CVEs Published
CVSS Severity
CVSS Severity - By Year
CVSS Base Score
| # CVE | Description | CVSS | EPSS | EPSS Trend (30 days) | Affected Products | Weaknesses | Security Advisories | Exploits | PoC | Pubblication Date | Modification Date |
|---|---|---|---|---|---|---|---|---|---|---|---|
| # CVE | Description | CVSS | EPSS | EPSS Trend (30 days) | Affected Products | Weaknesses | Security Advisories | PoC | Pubblication Date | Modification Date |
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