K9Mail v5.600 XML External Entity (XXE) Vulnerability: Confidential Data Disclosure and Denial of Service

CVE-2018-1000831

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.

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