What’s Vulnerable › Vulnerabilities

CVE-2018-20000

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-12-10 · updated 2026-06-17
• Weakness: CWE-611

Description

Apereo Bedework bw-webdav before 4.0.3 allows XXE attacks, as demonstrated by an invite-reply document that reads a local file, related to webdav/servlet/common/MethodBase.java and webdav/servlet/common/PostRequestPars.java.

Affected products

• Apereo Bw-Webdav: before 4.0.3 — fixed in 4.0.3

How to fix

Upgrade to a fixed version: Apereo Bw-Webdav 4.0.3. Check the vendor advisory for mitigations.

References

• https://github.com/Bedework/bw-webdav/compare/bw-webdav-4.0.2...bw-webdav-4.0.3
• https://github.com/Bedework/bw-webdav/pull/1
• https://github.com/Bedework/bw-webdav/compare/bw-webdav-4.0.2...bw-webdav-4.0.3
• https://github.com/Bedework/bw-webdav/pull/1

Get alerted when CVE-2018-20000 or the next vulnerability affects your stack