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Vulnerabilities

Vulnerability · CVE-2025-40916

Mojolicious::Plugin::CaptchaPNG version 1.05 for Perl uses a weak random number source for generating the captcha.

Published Jun 16, 2025 · catalog updated Jun 16, 2025 · GRYPHON Mojolicious::Plugin::CaptchaPNG

Check this week

CVE-2025-40916 is not in CISA KEV. FIRST estimates a 42.00% chance of exploitation in the next 30 days. Check whether you run GRYPHON Mojolicious::Plugin::CaptchaPNG.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
42.00%
Remediation
Advisory link
Affected products
vendor GRYPHON Mojolicious::Plugin::CaptchaPNG 1.05

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor GRYPHON Mojolicious::Plugin::CaptchaPNG 1.051.05

How to fix CVE-2025-40916

  • Recommended remediation

    A patch or advisory reference is linked. Open the original publisher for availability by product version.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-40916 is not in CISA KEV. FIRST estimates a 42.00% chance of exploitation in the next 30 days. Check whether you run GRYPHON Mojolicious::Plugin::CaptchaPNG.

Which versions are affected?

Compare what you have installed with GRYPHON Mojolicious::Plugin::CaptchaPNG 1.05 1.05. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 42.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 16, 2025 · EUVD

    Detected

    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.

  2. Jun 16, 2025 · EUVD

    Updated

    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.

Sources

  • EUVDVulnerability recordEUVD-2025-18387

    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.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Jun 16, 2025. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.