No exploitation reportedFix available

CVE-2018-15761

Q: Is CVE-2018-15761 actively exploited?

Active exploitation of CVE-2018-15761 has not been confirmed. Its EPSS score was 1.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2018-15761?

CVE-2018-15761 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2018-11-19
Fixed in4.23.0

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2018-11-1914:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-15761?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-15761?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Pivotal software cloud foundry uaa

Branch	Affected	Fixed in	Source
4.23	< 4.23.0	4.23.0	NVD

Pivotal software cloudfoundry uaa release

Branch	Affected	Fixed in	Source
64.0	< 64.0	64.0	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Pivotal software cloud foundry uaa to 4.23.0

Advisories and patches

www.cloudfoundry.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CNACVSS 3.09.9read 2026-10-23
NVDCVSS 3.08.8read 2026-10-23
NVDCVSS 2.06.5read 2026-10-23
FIRST EPSSEPSS score1.7 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2018-11-19
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2018-15761?

Is CVE-2018-15761 actively exploited?

Active exploitation of CVE-2018-15761 has not been confirmed. Its EPSS score was 1.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-15761?

CVE-2018-15761 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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