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:*:*:*:*:*:*:*:*

More vulnerabilities in Theforeman Foreman

CVE-2018-14643 — Critical (CVSS 9.8): An authentication bypass flaw was found in the smart_proxy_dynflow component used by Foreman. A malicious attacker can…
CVE-2023-0118 — Critical (CVSS 9.1): An arbitrary code execution flaw was found in Foreman. This flaw allows an admin user to bypass safe mode in templates…
CVE-2021-3590 — High (CVSS 8.8): A flaw was found in Foreman project. A credential leak was identified which will expose Azure Compute Profile password…
CVE-2018-1097 — High (CVSS 8.8): A flaw was found in foreman before 1.16.1. The issue allows users with limited permissions for powering oVirt/RHV hosts…
CVE-2017-7505 — High (CVSS 8.8): Foreman since version 1.5 is vulnerable to an incorrect authorization check due to which users with user management…
CVE-2016-4475 — High (CVSS 8.8): The (1) Organization and (2) Locations APIs and UIs in Foreman before 1.11.4 and 1.12.x before 1.12.0-RC3 allow remote…

All CVEs affecting Theforeman Foreman →

Other CWE-284 (Improper Access Control) vulnerabilities

CVE-2026-50746 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi…
CVE-2026-46978 — Critical (CVSS 10.0): Vulnerability in the Oracle Solaris product of Oracle Systems (component: Remote Administration Daemon). The…
CVE-2026-35308 — Critical (CVSS 10.0): Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Centralized Third Party Jars).…
CVE-2026-35307 — Critical (CVSS 10.0): Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported versions that…
CVE-2026-46695 — Critical (CVSS 10.0): Boxlite is a sandbox service that allows users to create lightweight virtual machines (Boxes) and launch OCI containers…
CVE-2026-46840 — Critical (CVSS 10.0): Vulnerability in Oracle REST Data Services (component: Backend-as-a-Service). Supported versions that are affected are…

Browse all CWE-284 (Improper Access Control) vulnerabilities →