Back
CVE-2018-1000831
CRITICAL
K9Mail version <= v5.600 contains a XML External Entity (XXE) vulnerability in WebDAV response parser that can result in Disclosure of confidential data, denial of service, SSRF, port scanning. This attack appear to be exploitable via malicious WebDAV server or intercept the reponse of a valid WebDAV server.
Published: Dec 20, 2018
Modified: Jun 17, 2026
CWE-611
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
CHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected Products (1)
| Vendor | Product | Version |
|---|---|---|
| k9mail | k-9_mail | * |
GitHub Security Advisory GHSA-68hq-qrc4-w5h8
K9Mail version <= v5.600 contains a XML External Entity (XXE) vulnerability in WebDAV response...
References (4)
- https://0dd.zone/2018/10/28/k9mail-XXE-MitM/ Third Party Advisory
- https://github.com/k9mail/k-9/issues/3681 Issue Tracking, Third Party Advisory
- https://0dd.zone/2018/10/28/k9mail-XXE-MitM/ Third Party Advisory
- https://github.com/k9mail/k-9/issues/3681 Issue Tracking, Third Party Advisory
Risk Scores
CVSS Score
10.0 / 10
EPSS Score
1.91%
Top 22% most likely to be exploited
Threat Score
40.6 / 100
Data Sources
NVD
EPSS
GitHub