How severe is CVE-2026-28315?

CVE-2026-28315 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-28315 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28315?

CVE-2026-28315 affects Solarwinds Serv-u. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28315?

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

When was CVE-2026-28315 published?

CVE-2026-28315 was published on 2026-07-21 and last updated on 2026-07-24.

CVE-2026-28315

CVE-2026-28315 is a medium-severity vulnerability in Solarwinds Serv-u with a CVSS 3.x base score of 6.2. 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 6.2)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Solarwinds Serv-u
Published: 2026-07-21
Last modified: 2026-07-24

Description

SolarWinds Serv-U was found to be affected by a stored cross-site scripting vulnerability that could lead to session hijacking or information disclosure from an administrator account.

Frequently asked questions

What is CVE-2026-28315?: SolarWinds Serv-U was found to be affected by a stored cross-site scripting vulnerability that could lead to session hijacking or information disclosure from an administrator account.
How severe is CVE-2026-28315?: CVE-2026-28315 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-28315 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28315?: CVE-2026-28315 affects Solarwinds Serv-u. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28315?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-28315 published?: CVE-2026-28315 was published on 2026-07-21 and last updated on 2026-07-24.

References

Affected products (1)

cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:*

More vulnerabilities in Solarwinds Serv-u

CVE-2020-35481 — Critical (CVSS 9.8): SolarWinds Serv-U before 15.2.2 allows Unauthenticated Macro Injection.
CVE-2026-28321 — Critical (CVSS 9.1): SolarWinds Serv-U is affected by a broken access control vulnerability that could allow arbitrary file read and write,…
CVE-2026-28317 — Critical (CVSS 9.1): SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that can lead to privilege…
CVE-2026-28316 — Critical (CVSS 9.1): SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that can lead to privilege…
CVE-2026-28314 — Critical (CVSS 9.1): SolarWinds Serv-U is affected by an insecure direct object reference vulnerability that leads to an account takeover.…
CVE-2026-28313 — Critical (CVSS 9.1): SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that can lead to SMTP…

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