How severe is CVE-2026-28298?

CVE-2026-28298 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-28298 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28298?

CVE-2026-28298 affects Solarwinds Observability Self-hosted. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28298?

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

Does CVE-2026-28298 have an EU (EUVD) identifier?

Yes. CVE-2026-28298 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16185.

When was CVE-2026-28298 published?

CVE-2026-28298 was published on 2026-03-26 and last updated on 2026-06-17.

CVE-2026-28298

CVE-2026-28298 is a medium-severity vulnerability in Solarwinds Observability Self-hosted with a CVSS 3.x base score of 5.9. 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 5.9)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-16185
Weakness: CWE-79
Affected product: Solarwinds Observability Self-hosted
Published: 2026-03-26
Last modified: 2026-06-17

Description

SolarWinds Observability Self-Hosted was found to be affected by a stored cross-site scripting vulnerability, which when exploited, can lead to unintended script execution.

Frequently asked questions

What is CVE-2026-28298?: SolarWinds Observability Self-Hosted was found to be affected by a stored cross-site scripting vulnerability, which when exploited, can lead to unintended script execution.
How severe is CVE-2026-28298?: CVE-2026-28298 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-28298 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28298?: CVE-2026-28298 affects Solarwinds Observability Self-hosted. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28298?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-28298 have an EU (EUVD) identifier?: Yes. CVE-2026-28298 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16185.
When was CVE-2026-28298 published?: CVE-2026-28298 was published on 2026-03-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:solarwinds:observability_self-hosted:*:*:*:*:*:*:*:*

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