How severe is CVE-2015-8399?

CVE-2015-8399 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2015-8399 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 61% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-8399?

CVE-2015-8399 affects Atlassian Confluence. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-8399?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-8399 published?

CVE-2015-8399 was published on 2016-04-11 and last updated on 2026-06-17.

CVE-2015-8399

CVE-2015-8399 is a medium-severity vulnerability in Atlassian Confluence with a CVSS 3.x base score of 4.3. Its EPSS exploit-prediction score of 61% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 61% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Atlassian Confluence
Published: 2016-04-11
Last modified: 2026-06-17

Description

Atlassian Confluence before 5.8.17 allows remote authenticated users to read configuration files via the decoratorName parameter to (1) spaces/viewdefaultdecorator.action or (2) admin/viewdefaultdecorator.action.

Frequently asked questions

What is CVE-2015-8399?: Atlassian Confluence before 5.8.17 allows remote authenticated users to read configuration files via the decoratorName parameter to (1) spaces/viewdefaultdecorator.action or (2) admin/viewdefaultdecorator.action.
How severe is CVE-2015-8399?: CVE-2015-8399 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2015-8399 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 61% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-8399?: CVE-2015-8399 affects Atlassian Confluence. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-8399?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-8399 published?: CVE-2015-8399 was published on 2016-04-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:atlassian:confluence:*:*:*:*:*:*:*:*

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