{"schema":"threatline.record/2","record":{"id":"CVE-2025-31161","aliases":[],"summary":"CrushFTP Authentication Bypass Vulnerability","details":"CrushFTP contains an authentication bypass vulnerability in the HTTP authorization header that allows a remote unauthenticated attacker to authenticate to any known or guessable user account (e.g., crushadmin), potentially leading to a full compromise. ","categories":["Network & edge"],"product":"CrushFTP","vendor":"CrushFTP","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2025-31161","source_modified_at":"2025-10-21T22:55:22.326Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"CrushFTP","vendor":"CrushFTP","versions":[{"lessThan":"10.8.4","status":"affected","version":"10","versionType":"custom"},{"lessThan":"11.3.1","status":"affected","version":"11","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2025-31161","source_modified_at":"2025-10-21T22:55:22.326Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"CrushFTP","ecosystem":null},"version":"10.8.4","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2025-31161","source_modified_at":"2025-10-21T22:55:22.326Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"CrushFTP","ecosystem":null},"version":"11.3.1","basis":"first unaffected version stated in the CVE record"}],"cvss":9.8,"severity":"Critical","kev":{"listed":true,"date_added":"2025-04-07","due_date":"2025-04-28","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","ransomware_campaign_use":"Known"},"epss":{"probability":0.99966,"percentile":0.99977,"score_date":"2026-10-23"},"published_at":"2025-04-03T00:00:00.000Z","modified_at":"2025-10-21T22:55:22.326Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2025-31161","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T22:55:22.326Z"},{"source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/52295","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-05-18"},{"source":"Nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-31161.yaml","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":null},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2025-31161","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Exploit-DB","Nuclei","EPSS"],"references":[{"url":"https://www.crushftp.com/crush11wiki/Wiki.jsp?page=Update","source":"CISA KEV"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-31161","source":"CISA KEV"},{"source":"CVE List","url":"https://outpost24.com/blog/crushftp-auth-bypass-vulnerability/"},{"source":"CVE List","url":"https://crushftp.com/crush11wiki/Wiki.jsp?page=Update#section-Update-VulnerabilityInfo"},{"source":"CVE List","url":"https://projectdiscovery.io/blog/crushftp-authentication-bypass"},{"source":"CVE List","url":"https://www.darkreading.com/vulnerabilities-threats/disclosure-drama-clouds-crushftp-vulnerability-exploitation"},{"source":"CVE List","url":"https://www.huntress.com/blog/crushftp-cve-2025-31161-auth-bypass-and-post-exploitation"},{"source":"CVE List","url":"https://attackerkb.com/topics/k0EgiL9Psz/cve-2025-2825/rapid7-analysis"},{"source":"CVE List","url":"https://www.infosecurity-magazine.com/news/crushftp-flaw-exploited-disclosure/"},{"source":"CVE List","url":"https://www.vicarius.io/vsociety/posts/cve-2025-31161-detect-crushftp-vulnerability"},{"source":"CVE List","url":"https://www.vicarius.io/vsociety/posts/cve-2025-31161-mitigate-crushftp-vulnerability"},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-31161","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"total","assessed_at":"2025-08-15T19:11:52.009095Z"},"exploits":[{"source":"Exploit-DB","kind":"Remote exploit","name":"CrushFTP 11.3.1 - Authentication Bypass","url":"https://www.exploit-db.com/exploits/52295","date":"2025-05-18","added":"2025-05-18","verified":false},{"source":"Nuclei","kind":"Scanner template","name":"CrushFTP - Authentication Bypass","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-31161.yaml"}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2025-10-21T22:55:22.326Z","content_hash":"72eec194d7566cadc558bea8e761edfbdfbd2298eef4e23f831ae740d6e5d0ee"}}