What’s Vulnerable › Vulnerabilities

CVE-2018-1000836

• Severity: critical (CVSS 9.0 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-12-20 · updated 2026-06-17
• Weakness: CWE-611

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.

Affected products

• Apereo Bw-Calendar-Engine: through 3.12.0

References

• https://0dd.zone/2018/10/28/bw-calendar-engine-XXE-MitM/
• https://github.com/Bedework/bw-calendar-engine/issues/3
• https://0dd.zone/2018/10/28/bw-calendar-engine-XXE-MitM/
• https://github.com/Bedework/bw-calendar-engine/issues/3

Get alerted when CVE-2018-1000836 or the next vulnerability affects your stack