CVE-2018-1000831

CRITICAL 10.0CVE-2018-1000831 · Published 20/12/2018 · updated 17/06/2026

In short

CVE-2018-1000831 is a CRITICAL (CVSS 10.0) vulnerability affecting k-9 mail (k9mail).
Chance of exploitation in the next 30 days (EPSS): 1.9%, higher than 79.9% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
k-9 mail k9mail	`≤ 5.600`	No fix yet

Description

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.

References

0dd.zone/2018/10/28/k9mail-XXE-MitM · Third Party Advisory
k9mail/k-9 · Issue Tracking

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