How severe is CVE-2021-28054?

CVE-2021-28054 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-28054 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-2021-28054?

CVE-2021-28054 affects Centreon. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-28054?

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

When was CVE-2021-28054 published?

CVE-2021-28054 was published on 2021-07-16 and last updated on 2026-06-17.

CVE-2021-28054

CVE-2021-28054 is a medium-severity vulnerability in Centreon with a CVSS 3.x base score of 5.4. 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 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Centreon
Published: 2021-07-16
Last modified: 2026-06-17

Description

An issue was discovered in Centreon-Web in Centreon Platform 20.10.0. A Stored Cross-Site Scripting (XSS) issue in "Configuration > Hosts" allows remote authenticated users to inject arbitrary web script or HTML via the Alias parameter.

Frequently asked questions

What is CVE-2021-28054?: An issue was discovered in Centreon-Web in Centreon Platform 20.10.0. A Stored Cross-Site Scripting (XSS) issue in "Configuration > Hosts" allows remote authenticated users to inject arbitrary web script or HTML via the Alias parameter.
How severe is CVE-2021-28054?: CVE-2021-28054 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-28054 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-2021-28054?: CVE-2021-28054 affects Centreon. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-28054?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-28054 published?: CVE-2021-28054 was published on 2021-07-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:centreon:centreon:20.10.0:*:*:*:*:*:*:*

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