{"id":"CVE-2025-3895","state":"PUBLISHED","title":"Low token entropy in MegaBIP","description":"Token used for resetting passwords in MegaBIP software are generated using a small space of random values combined with a queryable value.\n It allows an unauthenticated attacker who know user login names to brute force these tokens and change account passwords (including these belonging to administrators). \nVersion 5.20 of MegaBIP fixes this issue.","publishedAt":"2025-05-23T10:20:03.919Z","updatedAt":"2025-05-23T12:07:48.408Z","severity":{"score":9.1,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","source":"CERT-PL"},"assigner":"CERT-PL","products":["Jan Syski MegaBIP"],"affected":[{"vendor":"Jan Syski","product":"MegaBIP","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"5.19","versionType":"semver"}]}],"references":["https://cert.pl/en/posts/2025/05/CVE-2025-3893","https://megabip.pl/index.php?id=24,145","https://www.gov.pl/web/cyfryzacja/rekomendacja-pelnomocnika-rzadu-ds-cyberbezpieczenstwa-dotyczaca-biuletynow-informacji-publicznej"],"weaknesses":["CWE-334"],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/3xxx/CVE-2025-3895.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-3895","state":"PUBLISHED","datePublished":"2025-05-23T10:20:03.919Z","dateUpdated":"2025-05-23T12:07:48.408Z","assignerShortName":"CERT-PL","assignerOrgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","dateReserved":"2025-04-23T09:52:16.114Z"},"containers":{"cna":{"title":"Low token entropy in MegaBIP","descriptions":[{"lang":"en","value":"Token used for resetting passwords in MegaBIP software are generated using a small space of random values combined with a queryable value.\n It allows an unauthenticated attacker who know user login names to brute force these tokens and change account passwords (including these belonging to administrators). \nVersion 5.20 of MegaBIP fixes this issue."}],"affected":[{"vendor":"Jan Syski","product":"MegaBIP","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"5.19","versionType":"semver"}]}],"references":[{"url":"https://cert.pl/en/posts/2025/05/CVE-2025-3893","tags":["third-party-advisory"]},{"url":"https://megabip.pl/index.php?id=24,145","tags":["vendor-advisory"]},{"url":"https://www.gov.pl/web/cyfryzacja/rekomendacja-pelnomocnika-rzadu-ds-cyberbezpieczenstwa-dotyczaca-biuletynow-informacji-publicznej","tags":["government-resource"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":9.1,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-334","description":"CWE-334 Small Space of Random Values","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"CERT-PL","orgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","dateUpdated":"2025-05-23T10:20:03.919Z"},"credits":[{"lang":"en","type":"finder","value":"Kamil Szczurowski"},{"lang":"en","type":"finder","value":"Robert Kruczek"}],"impacts":[{"capecId":"CAPEC-592","descriptions":[{"lang":"en","value":"CAPEC-592 Stored XSS"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-05-23T12:07:30.570920Z","id":"CVE-2025-3895","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-05-23T12:07:48.408Z"}}]}}}