7.3

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2023-1886

CVE-2023-1886: thorsten/phpmyfaq vulnerable to authentication bypass

thorsten/phpmyfaq prior to 3.1.12 is vulnerable to authentication bypass by capture-relay that allows unlimited comments to be sent. This has been fixed in 3.1.12.

(GitHub Advisory)

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CVE-2023-1886

CVE-2023-1886:

7.3

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
thorsten/phpmyfaq	composer	< 3.1.12	3.1.12

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems from how the CAPTCHA validation was conditionally skipped when the $code parameter was null in ajaxservice.php. The checkCaptchaCode function's original signature (string $code) would have caused a type error if called with null, but the surrounding code in ajaxservice.php explicitly avoided invoking it when $code was null. This allowed attackers to bypass CAPTCHA checks by omitting the code parameter. The patch modified the function to accept nullable strings and enforced the check even for null/empty values, closing the bypass. The function's original design (strict string parameter) indirectly enabled the bypass when combined with the flawed conditional logic in ajaxservice.php.

Vulnerable functions

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Vulnerability Intelligence
Miggo AI

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WAF Protection Rules

WAF Rule

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Reasoning

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