Is CVE-2017-18109 actively exploited?

No active exploitation of CVE-2017-18109 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-18109 be exploited remotely?

Yes. CVE-2017-18109 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-18109?

CVE-2017-18109 has a CVSS score of 6.1 (MEDIUM).

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MEDIUM

CVE-2017-18109

CWE-601Published: March 29, 2019· Updated: Jun 17, 2026

6.1

CVSS v3.1

Official Description

The login resource of CrowdId in Atlassian Crowd before version 3.0.2 and from version 3.1.0 before version 3.1.1 allows remote attackers to redirect users to a different website which they may use as part of performing a phishing attack via an open redirect.

NVD Source

Technical Analysis

CVE-2017-18109 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.