Is CVE-2015-3988 in the CISA KEV catalog?

No. CVE-2015-3988 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-3988?

CVE-2015-3988 has a CVSS v2 base score of 3.5 (LOW).

What is the EPSS score for CVE-2015-3988?

CVE-2015-3988 has an EPSS score of 1.80% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-3988?

Upgrade horizon on debian 11 to 2015.1.0-2 or later.

CVE & CISA-KEV Catalog

CVE-2015-3988

LOWEPSS 76th pctl

3.5

CVSS v2

NVD

Description

Multiple cross-site scripting (XSS) vulnerabilities in OpenStack Dashboard (Horizon) 2015.1.0 allow remote authenticated users to inject arbitrary web script or HTML via the metadata to a (1) Glance image, (2) Nova flavor or (3) Host Aggregate.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

horizonDebian

Fixed in:2015.1.0-2CVE-2015-3988

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

1.80%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Third-Party Advisory4

Other references2

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.