How severe is CVE-2018-15761?

CVE-2018-15761 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-15761 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15761?

CVE-2018-15761 primarily affects Pivotal Software Cloud Foundry Uaa. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-15761?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-15761 published?

CVE-2018-15761 was published on 2018-11-19 and last updated on 2026-06-17.

CVE-2018-15761

CVE-2018-15761 is a critical-severity vulnerability in Pivotal Software Cloud Foundry Uaa with a CVSS 3.x base score of 9.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
CVSS v2: 6.5
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Pivotal Software Cloud Foundry Uaa
Published: 2018-11-19
Last modified: 2026-06-17

Description

Cloud Foundry UAA release, versions prior to v64.0, and UAA, versions prior to 4.23.0, contains a validation error which allows for privilege escalation. A remote authenticated user may modify the url and content of a consent page to gain a token with arbitrary scopes that escalates their privileges.

Frequently asked questions

What is CVE-2018-15761?: Cloud Foundry UAA release, versions prior to v64.0, and UAA, versions prior to 4.23.0, contains a validation error which allows for privilege escalation. A remote authenticated user may modify the url and content of a consent page to gain a token with arbitrary scopes that escalates their privileges.
How severe is CVE-2018-15761?: CVE-2018-15761 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-15761 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15761?: CVE-2018-15761 primarily affects Pivotal Software Cloud Foundry Uaa. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-15761?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-15761 published?: CVE-2018-15761 was published on 2018-11-19 and last updated on 2026-06-17.

References

https://www.cloudfoundry.org/blog/cve-2018-15761/

Affected products (2)

cpe:2.3:a:pivotal_software:cloud_foundry_uaa:*:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloudfoundry_uaa_release:*:*:*:*:*:*:*:*

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