{"id":"CVE-2025-2746","published":"2025-03-24T19:15:51Z","modified":"2026-06-17T09:07:33Z","title":"Kentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel Vulnerability","vendor":"Kentico","product":"Xperience CMS","tier":"core","eol":null,"description":{"text":"An authentication bypass vulnerability in Kentico Xperience allows authentication bypass via the Staging Sync Server password handling of empty SHA1 usernames in digest authentication. Authentication bypass allows an attacker to control administrative objects.This issue affects Xperience through 13.0.172.","provenance":"source","from":"NVD"},"summary":{"text":"Kentico Xperience CMS contains an authentication bypass flaw in its Staging Sync Server password handling, which mishandles empty SHA1 usernames in digest authentication. An attacker with network access can bypass authentication without credentials or user interaction and gain control over administrative objects.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:09:49Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.74055,"percentile":0.99482,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2025-10-20","dueDate":"2025-11-10","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","notes":"https://devnet.kentico.com/download/hotfixes ; https://nvd.nist.gov/vuln/detail/CVE-2025-2746","provenance":"source"},"vulncheckKev":{"dateAdded":"2025-10-20","exploitedFirstSeen":"2025-10-20","ransomware":false,"evidence":[{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2025-10-20"},{"url":"https://cyble.com/resources/research-reports/global-cybersecurity-report/","date":"2025-12-11"},{"url":"https://www.loginsoft.com/reports/annually/vulnerability-intelligence-report-2025","date":"2026-01-20"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-09-17&host_type=src&vulnerability=cve-2025-2746","date":"2026-09-17"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-09-18&host_type=src&vulnerability=cve-2025-2746","date":"2026-09-18"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-09-21&host_type=src&vulnerability=cve-2025-2746","date":"2026-09-21"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-09-22&host_type=src&vulnerability=cve-2025-2746","date":"2026-09-22"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-09-25&host_type=src&vulnerability=cve-2025-2746","date":"2026-09-25"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-09-26&host_type=src&vulnerability=cve-2025-2746","date":"2026-09-26"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-09-27&host_type=src&vulnerability=cve-2025-2746","date":"2026-09-27"}],"evidenceTotal":18,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"}],"provenance":"machine"},"cwes":[{"id":"CWE-288","name":"Authentication Bypass Using an Alternate Path or Channel"}],"references":[{"url":"https://devnet.kentico.com/download/hotfixes","tags":["Patch"]},{"url":"https://github.com/watchtowrlabs/kentico-xperience13-AuthBypass-wt-2025-0011","tags":["Third Party Advisory"]},{"url":"https://labs.watchtowr.com/bypassing-authentication-like-its-the-90s-pre-auth-rce-chain-s-in-kentico-xperience-cms/","tags":["Exploit","Third Party Advisory"]},{"url":"https://www.vulncheck.com/advisories/kentico-xperience-staging-sync-server-digest-password-authentication-bypass","tags":["Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2746","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Remote unauthenticated bypass of public-facing CMS auth","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"authentication bypass vulnerability in Kentico Xperience allows authentication bypass","start":3,"end":88}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1078","name":"Valid Accounts","tactics":["initial-access","persistence","privilege-escalation","stealth"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Bypass grants administrative account-level access","mappingType":"primary_impact","evidence":[{"from":"description","quote":"Authentication bypass allows an attacker to control administrative objects","start":185,"end":259}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2025-8008","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-8008","exploited":true,"exploitedSince":"2025-10-20","provenance":"source"},"exploits":[],"exploitSources":{"nuclei":[{"id":"CVE-2025-2746","name":"Kentico Xperience 13 CMS - Staging Service Authentication Bypass (WT-2025-0011)","severity":"critical","path":"http/cves/2025/CVE-2025-2746.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-2746.yaml"}],"provenance":"source"},"exploitRefs":["https://labs.watchtowr.com/bypassing-authentication-like-its-the-90s-pre-auth-rce-chain-s-in-kentico-xperience-cms/"],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1078"],"provenance":"ai"}],"timeline":[{"date":"2025-03-24","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-2746","provenance":"source"},{"date":"2025-10-20","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","provenance":"source"},{"date":"2025-10-20","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2025-10-20","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-8008","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":210},"priority":{"score":69.8,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 375 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.9,"detail":"percentile 0.9948"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 NVD reference tagged Exploit; 1 nuclei template"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}