CVE-2016-6668

The Atlassian Hipchat Integration Plugin for Bitbucket Server 6.26.0 before 6.27.5, 6.28.0 before...

7.5 High

The Atlassian Hipchat Integration Plugin for Bitbucket Server 6.26.0 before 6.27.5, 6.28.0 before 7.3.7, and 7.4.0 before 7.8.17; Confluence HipChat plugin 6.26.0 before 7.8.17; and HipChat for JIRA plugin 6.26.0 before 7.8.17 allows remote attackers to obtain the secret key for communicating with HipChat instances by reading unspecified pages.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

3.82%Up 2.5 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2016-6668
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

CVE List No score

Record: CVE-2016-6668
Updated: 2026-11-02

EUVDEUVD-2016-7571 No score

Record: EUVD-2016-7571
Updated: 2026-11-03

GitHub AdvisoriesGHSA-cpw5-xffh-q7hh 7.5

The Atlassian Hipchat Integration Plugin for Bitbucket Server 6.26.0 before 6.27.5, 6.28.0 before...

Record: GHSA-cpw5-xffh-q7hh
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-6668 is a high vulnerability (CVSS 7.5) in Atlassian Confluence Server, published January 23, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.82%, the 90th percentile. No source names a fixed version.