How severe is CVE-2018-15455?

CVE-2018-15455 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-15455 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15455?

CVE-2018-15455 primarily affects Cisco Identity Services Engine. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-15455?

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

When was CVE-2018-15455 published?

CVE-2018-15455 was published on 2019-01-23 and last updated on 2026-06-17.

CVE-2018-15455

CVE-2018-15455 is a medium-severity vulnerability in Cisco Identity Services Engine with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Cisco Identity Services Engine
Published: 2019-01-23
Last modified: 2026-06-17

Description

A vulnerability in the logging component of Cisco Identity Services Engine could allow an unauthenticated, remote attacker to conduct cross-site scripting attacks. The vulnerability is due to the improper validation of requests stored in the system's logging database. An attacker could exploit this vulnerability by sending malicious requests to the targeted system. An exploit could allow the attacker to conduct cross-site scripting attacks when an administrator views the logs in the Admin Portal.

Frequently asked questions

What is CVE-2018-15455?: A vulnerability in the logging component of Cisco Identity Services Engine could allow an unauthenticated, remote attacker to conduct cross-site scripting attacks. The vulnerability is due to the improper validation of requests stored in the system's logging database. An attacker could exploit this vulnerability by sending malicious requests to the targeted system. An exploit could allow the attacker to conduct cross-site scripting attacks when an administrator views the logs in the Admin Portal.
How severe is CVE-2018-15455?: CVE-2018-15455 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-15455 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15455?: CVE-2018-15455 primarily affects Cisco Identity Services Engine. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-15455?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-15455 published?: CVE-2018-15455 was published on 2019-01-23 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:cisco:identity_services_engine:2.2\(0.910\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.3\(0.905\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.4\(0.903\):*:*:*:*:*:*:*

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