7.5

CVE-2016-6668: atlassian confluence_server

Modified
Published 23-01-2017Last modified 06-08-2024

Vulnerability summary

CVE-2016-6668 is a high (CVSS 7.5) vulnerability in atlassian confluence_server. EPSS estimates a 3.82% chance of exploitation in the next 30 days, higher than 90% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 4% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
3.82%
0%100%
Low · +0.07 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 23-01-2017
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

3.82%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

Increase +0.07 pp

From 3.74% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Atlassian2 products
  • confluence_server5.5.0 | 5.9.1 | 5.9.2 | 5.9.3 | 5.9.4 | 5.9.5 | 5.9.6 | 5.9.7 | 5.9.8 | 5.9.9 | 5.9.10 | 5.9.11 | 5.9.12 | 5.10.0 | 5.10.1 | 5.10.2 | 5.10.3
  • jira_integration_for_hipchat6.26.0 | 6.26.10 | 6.29.1 | 6.29.2 | 6.31.0 | 7.1.0 | 7.2.1 | 7.3.2 | 7.3.3 | 7.4.1 | 7.8.1 | 7.8.3 | 7.8.12

1 vendor · 2 products

References

6 links