github - ghsa-w6w2-2wxg-ggwx

GHSA-W6W2-2WXG-GGWX

Vulnerability from github – Published: 2025-06-16 12:30 – Updated: 2025-06-16 15:32

Details

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.

Severity ?

9.1 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2025-40916"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-338"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-16T11:15:17Z",
    "severity": "CRITICAL"
  },
  "details": "Mojolicious::Plugin::CaptchaPNG version 1.05 for Perl uses a weak random number source for generating the captcha.\n\nThat version uses the built-in rand() function for generating the captcha text as well as image noise, which is insecure.",
  "id": "GHSA-w6w2-2wxg-ggwx",
  "modified": "2025-06-16T15:32:26Z",
  "published": "2025-06-16T12:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40916"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/pod/perlfunc#rand"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/GRYPHON/Mojolicious-Plugin-CaptchaPNG-1.04/diff/GRYPHON/Mojolicious-Plugin-CaptchaPNG-1.05/lib/Mojolicious/Plugin/CaptchaPNG.pm"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/GRYPHON/Mojolicious-Plugin-CaptchaPNG-1.06/changes"
    },
    {
      "type": "WEB",
      "url": "https://security.metacpan.org/docs/guides/random-data-for-security.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-40916 (GCVE-0-2025-40916)

Vulnerability from cvelistv5 – Published: 2025-06-16 11:01 – Updated: 2025-06-16 13:31

Summary

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.

Severity ?

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CWE

CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator
CWE-804 - Guessable CAPTCHA

Assigner

CPANSec

References

URL

Tags

	https://metacpan.org/release/GRYPHON/Mojolicious-…
	https://metacpan.org/release/GRYPHON/Mojolicious-…
	https://metacpan.org/pod/perlfunc#rand
	https://security.metacpan.org/docs/guides/random-…

Impacted products

	Vendor	Product	Version
	GRYPHON	Mojolicious::Plugin::CaptchaPNG	Affected: 1.05 (custom)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 9.1,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-40916",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-16T13:31:12.359144Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-16T13:31:45.621Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Mojolicious-Plugin-CaptchaPNG",
          "product": "Mojolicious::Plugin::CaptchaPNG",
          "repo": "https://github.com/gryphonshafer/Mojo-Plugin-CaptchaPNG",
          "vendor": "GRYPHON",
          "versions": [
            {
              "status": "affected",
              "version": "1.05",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003eMojolicious::Plugin::CaptchaPNG version 1.05 for Perl uses a weak random number source for generating the captcha text.\u003c/div\u003e\u003cdiv\u003eThat version uses the built-in rand() function for generating the captcha text as well as image noise, which is insecure.\u003c/div\u003e"
            }
          ],
          "value": "Mojolicious::Plugin::CaptchaPNG version 1.05 for Perl uses a weak random number source for generating the captcha.\n\nThat version uses the built-in rand() function for generating the captcha text as well as image noise, which is insecure."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-338",
              "description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator",
              "lang": "en",
              "type": "CWE"
            },
            {
              "cweId": "CWE-804",
              "description": "CWE-804 Guessable CAPTCHA",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-16T11:01:08.871Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "url": "https://metacpan.org/release/GRYPHON/Mojolicious-Plugin-CaptchaPNG-1.04/diff/GRYPHON/Mojolicious-Plugin-CaptchaPNG-1.05/lib/Mojolicious/Plugin/CaptchaPNG.pm"
        },
        {
          "url": "https://metacpan.org/release/GRYPHON/Mojolicious-Plugin-CaptchaPNG-1.06/changes"
        },
        {
          "url": "https://metacpan.org/pod/perlfunc#rand"
        },
        {
          "url": "https://security.metacpan.org/docs/guides/random-data-for-security.html"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003eUsers should upgrade to version 1.06 or later.\u003c/div\u003e"
            }
          ],
          "value": "Users should upgrade to version 1.06 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Mojolicious::Plugin::CaptchaPNG version 1.05 for Perl uses a weak random number source for generating the captcha text",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2025-40916",
    "datePublished": "2025-06-16T11:01:08.871Z",
    "dateReserved": "2025-04-16T09:05:34.361Z",
    "dateUpdated": "2025-06-16T13:31:45.621Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-W6W2-2WXG-GGWX

CVE-2025-40916 (GCVE-0-2025-40916)

Tags

Sightings

Nomenclature