How severe is CVE-2015-3155?

CVE-2015-3155 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-3155 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-3155?

CVE-2015-3155 affects Theforeman Foreman. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-3155?

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

When was CVE-2015-3155 published?

CVE-2015-3155 was published on 2015-08-14 and last updated on 2026-06-17.

CVE-2015-3155

CVE-2015-3155 is a medium-severity vulnerability in Theforeman Foreman with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Theforeman Foreman
Published: 2015-08-14
Last modified: 2026-06-17

Description

Foreman before 1.8.1 does not set the secure flag for the _session_id cookie in an https session, which makes it easier for remote attackers to capture this cookie by intercepting its transmission within an http session.

Frequently asked questions

What is CVE-2015-3155?: Foreman before 1.8.1 does not set the secure flag for the _session_id cookie in an https session, which makes it easier for remote attackers to capture this cookie by intercepting its transmission within an http session.
How severe is CVE-2015-3155?: CVE-2015-3155 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-3155 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-3155?: CVE-2015-3155 affects Theforeman Foreman. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-3155?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-3155 published?: CVE-2015-3155 was published on 2015-08-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:theforeman:foreman:*:*:*:*:*:*:*:*

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