{"id":"CVE-2018-1000836","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-1000836","generatedAt":"2026-10-28T21:32:01.888Z","title":"bw-calendar-engine version <= bw-calendar-engine-3.12.0 contains a XML External Entity (XXE) vulnerability in IscheduleClient XML Parser that can result in Disclosure of confidential data, denial of service, SSRF, port scanning.","description":"bw-calendar-engine version <= bw-calendar-engine-3.12.0 contains a XML External Entity (XXE) vulnerability in IscheduleClient XML Parser that can result in Disclosure of confidential data, denial of service, SSRF, port scanning. This attack appear to be exploitable via Man in the Middle or malicious server.","published":"2018-12-20T15:29:02.000Z","lastModified":"2026-06-17T01:33:09.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-611"],"affected":["apereo/bw-calendar-engine"],"epss":{"score":0.0113,"percentile":0.66244,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://0dd.zone/2018/10/28/bw-calendar-engine-XXE-MitM/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/Bedework/bw-calendar-engine/issues/3","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://0dd.zone/2018/10/28/bw-calendar-engine-XXE-MitM/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/Bedework/bw-calendar-engine/issues/3","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-1000836","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}