CVE-2025-40916

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-40916
Mojolicious::Plugin::CaptchaPNG version 1.05 for Perl uses a weak random number source for generating the captcha. That version uses the built-in rand() function for generating the captcha text as well as image noise, which is insecure.

9.1 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://metacpan.org/pod/perlfunc#rand
https://metacpan.org/release/GRYPHON/Mojolicious-Plugin-CaptchaPNG-1.04/diff/GRYPHON/Mojolicious-Plugin-CaptchaPNG-1.05/lib/Mojolicious/Plugin/CaptchaPNG.pm
https://metacpan.org/release/GRYPHON/Mojolicious-Plugin-CaptchaPNG-1.06/changes
https://security.metacpan.org/docs/guides/random-data-for-security.html
Configurations

No configuration.

History

16 Jun 2025, 14:15

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 9.1

16 Jun 2025, 12:32

Type Values Removed Values Added
Summary
  • (es) La versión 1.05 de Mojolicious::Plugin::CaptchaPNG para Perl utiliza una fuente de números aleatorios débil para generar el captcha. Esta versión utiliza la función rand() integrada para generar el texto del captcha, así como el ruido de la imagen, lo cual es inseguro.

16 Jun 2025, 11:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-06-16 11:15

Updated : 2025-06-16 14:15

NVD link : CVE-2025-40916

Mitre link : CVE-2025-40916

CVE.ORG link : CVE-2025-40916

JSON object : View

Products Affected

No product.

CWE
CWE-338

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

CWE-804

Guessable CAPTCHA