XXE in Apereo Bw-Calendar-Engine
CVE-2018-1000836
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.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (65.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/Bedework/bw-calendar-engine/issues/3 (Third Party Advisory)
- 0dd.zone/2018/10/28/bw-calendar-engine-XXE-MitM/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2018-1000836?
- CVE-2018-1000836 is a critical-severity vulnerability in Apereo Bw-Calendar-Engine, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.0/10. Published 2018-12-20.
- How severe is CVE-2018-1000836?
- Critical severity. CVSS v3 base score is 9.0 out of 10.