How severe is CVE-2020-28001?

CVE-2020-28001 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-2020-28001 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-28001?

CVE-2020-28001 affects Solarwinds Serv-u. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-28001?

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

When was CVE-2020-28001 published?

CVE-2020-28001 was published on 2021-02-03 and last updated on 2026-06-17.

CVE-2020-28001

CVE-2020-28001 is a medium-severity vulnerability in Solarwinds Serv-u 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: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Solarwinds Serv-u
Published: 2021-02-03
Last modified: 2026-06-17

Description

SolarWinds Serv-U before 15.2.2 allows Authenticated Stored XSS.

Frequently asked questions

What is CVE-2020-28001?: SolarWinds Serv-U before 15.2.2 allows Authenticated Stored XSS.
How severe is CVE-2020-28001?: CVE-2020-28001 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-2020-28001 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-28001?: CVE-2020-28001 affects Solarwinds Serv-u. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-28001?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-28001 published?: CVE-2020-28001 was published on 2021-02-03 and last updated on 2026-06-17.

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-2025-40541 — Critical (CVSS 9.1): An Insecure Direct Object Reference (IDOR) vulnerability exists in Serv-U, which when exploited, gives a malicious…
CVE-2025-40540 — Critical (CVSS 9.1): A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute…
CVE-2025-40539 — Critical (CVSS 9.1): A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute…
CVE-2025-40538 — Critical (CVSS 9.1): A broken access control vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to…
CVE-2025-40549 — Critical (CVSS 9.1): A Path Restriction Bypass vulnerability exists in Serv-U that when abused, could give a malicious actor with access to…

All CVEs affecting Solarwinds Serv-u →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →