{"id":"CVE-2025-40916","state":"PUBLISHED","title":"Mojolicious::Plugin::CaptchaPNG version 1.05 for Perl uses a weak random number source for generating the captcha text","description":"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.","publishedAt":"2025-06-16T11:01:08.871Z","updatedAt":"2025-06-16T13:31:45.621Z","severity":{"score":9.1,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","source":"CISA-ADP"},"assigner":"CPANSec","products":["GRYPHON Mojolicious::Plugin::CaptchaPNG"],"affected":[{"vendor":"GRYPHON","product":"Mojolicious::Plugin::CaptchaPNG","packageName":"Mojolicious-Plugin-CaptchaPNG","defaultStatus":"unaffected","versions":[{"version":"1.05","status":"affected","versionType":"custom"}],"collectionURL":"https://cpan.org/modules","repo":"https://github.com/gryphonshafer/Mojo-Plugin-CaptchaPNG"}],"references":["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://metacpan.org/pod/perlfunc#rand","https://security.metacpan.org/docs/guides/random-data-for-security.html"],"weaknesses":["CWE-338","CWE-804"],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/40xxx/CVE-2025-40916.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-40916","state":"PUBLISHED","datePublished":"2025-06-16T11:01:08.871Z","dateUpdated":"2025-06-16T13:31:45.621Z","assignerShortName":"CPANSec","assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","dateReserved":"2025-04-16T09:05:34.361Z"},"containers":{"cna":{"title":"Mojolicious::Plugin::CaptchaPNG version 1.05 for Perl uses a weak random number source for generating the captcha text","descriptions":[{"lang":"en","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."}],"affected":[{"vendor":"GRYPHON","product":"Mojolicious::Plugin::CaptchaPNG","packageName":"Mojolicious-Plugin-CaptchaPNG","defaultStatus":"unaffected","versions":[{"version":"1.05","status":"affected","versionType":"custom"}],"collectionURL":"https://cpan.org/modules","repo":"https://github.com/gryphonshafer/Mojo-Plugin-CaptchaPNG"}],"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"}],"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":{"shortName":"CPANSec","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","dateUpdated":"2025-06-16T11:01:08.871Z"},"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<div>Users should upgrade to version 1.06 or later.</div>"}],"value":"Users should upgrade to version 1.06 or later."}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.1,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-06-16T13:31:12.359144Z","id":"CVE-2025-40916","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-06-16T13:31:45.621Z"}}]}}}