{"id":"CVE-2025-48372","state":"PUBLISHED","title":"Schule Has Insecure OTP Length, is Susceptible to Brute-Force Attacks","description":"Schule is open-source school management system software. The generateOTP() function generates a 4-digit numeric One-Time Password (OTP). Prior to version 1.0.1, even if a secure random number generator is used, the short length and limited range (1000–9999) results in only 9000 possible combinations. This small keyspace makes the OTP highly vulnerable to brute-force attacks, especially in the absence of strong rate-limiting or lockout mechanisms. Version 1.0.1 fixes the issue.","publishedAt":"2025-05-22T20:38:02.463Z","updatedAt":"2025-05-23T13:56:37.894Z","severity":{"score":6.6,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U","source":"GitHub_M"},"assigner":"GitHub_M","products":["schule111 Schule"],"affected":[{"vendor":"schule111","product":"Schule","versions":[{"version":"< 1.0.1","status":"affected"}]}],"references":["https://github.com/schule111/Schule/security/advisories/GHSA-6c48-67xx-vqgc","https://github.com/schule111/Schule/commit/cd53abbea93943f2c60a5281d45bebadc57636b7"],"weaknesses":["CWE-521"],"ingestedAt":"2026-10-29T20:09:23.771Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/48xxx/CVE-2025-48372.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-48372","state":"PUBLISHED","datePublished":"2025-05-22T20:38:02.463Z","dateUpdated":"2025-05-23T13:56:37.894Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-05-19T15:46:00.395Z"},"containers":{"cna":{"title":"Schule Has Insecure OTP Length, is Susceptible to Brute-Force Attacks","descriptions":[{"lang":"en","value":"Schule is open-source school management system software. The generateOTP() function generates a 4-digit numeric One-Time Password (OTP). Prior to version 1.0.1, even if a secure random number generator is used, the short length and limited range (1000–9999) results in only 9000 possible combinations. This small keyspace makes the OTP highly vulnerable to brute-force attacks, especially in the absence of strong rate-limiting or lockout mechanisms. Version 1.0.1 fixes the issue."}],"affected":[{"vendor":"schule111","product":"Schule","versions":[{"version":"< 1.0.1","status":"affected"}]}],"references":[{"url":"https://github.com/schule111/Schule/security/advisories/GHSA-6c48-67xx-vqgc","name":"https://github.com/schule111/Schule/security/advisories/GHSA-6c48-67xx-vqgc","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/schule111/Schule/commit/cd53abbea93943f2c60a5281d45bebadc57636b7","name":"https://github.com/schule111/Schule/commit/cd53abbea93943f2c60a5281d45bebadc57636b7","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.6,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-521","lang":"en","description":"CWE-521: Weak Password Requirements","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-05-22T20:38:02.463Z"},"source":{"advisory":"GHSA-6c48-67xx-vqgc","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-05-23T13:42:44.755851Z","id":"CVE-2025-48372","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":"2025-05-23T13:56:37.894Z"}}]}}}