How severe is CVE-2020-22428?

CVE-2020-22428 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-22428 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-22428?

CVE-2020-22428 primarily affects Solarwinds Serv-u Ftp Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-22428?

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

When was CVE-2020-22428 published?

CVE-2020-22428 was published on 2021-05-05 and last updated on 2026-06-17.

CVE-2020-22428

CVE-2020-22428 is a medium-severity vulnerability in Solarwinds Serv-u Ftp Server with a CVSS 3.x base score of 4.8. 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 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Solarwinds Serv-u Ftp Server
Published: 2021-05-05
Last modified: 2026-06-17

Description

SolarWinds Serv-U before 15.1.6 Hotfix 3 is affected by Cross Site Scripting (XSS) via a directory name (entered by an admin) containing a JavaScript payload.

Frequently asked questions

What is CVE-2020-22428?: SolarWinds Serv-U before 15.1.6 Hotfix 3 is affected by Cross Site Scripting (XSS) via a directory name (entered by an admin) containing a JavaScript payload.
How severe is CVE-2020-22428?: CVE-2020-22428 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-22428 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-22428?: CVE-2020-22428 primarily affects Solarwinds Serv-u Ftp Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-22428?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-22428 published?: CVE-2020-22428 was published on 2021-05-05 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:solarwinds:serv-u_ftp_server:15.1:*:*:*:*:*:*:*
cpe:2.3:a:solarwinds:serv-u_mft_server:15.1:*:*:*:*:*:*:*

More vulnerabilities in Solarwinds Serv-u Ftp Server

CVE-2020-15543 — Critical (CVSS 9.8): SolarWinds Serv-U FTP server before 15.2.1 does not validate an argument path.
CVE-2020-15542 — Critical (CVSS 9.8): SolarWinds Serv-U FTP server before 15.2.1 mishandles the CHMOD command.
CVE-2020-15541 — Critical (CVSS 9.8): SolarWinds Serv-U FTP server before 15.2.1 allows remote command execution.
CVE-2019-12181 — High (CVSS 8.8): A privilege escalation vulnerability exists in SolarWinds Serv-U before 15.1.7 for Linux.
CVE-2018-19999 — High (CVSS 7.8): The local management interface in SolarWinds Serv-U FTP Server 15.1.6.25 has incorrect access controls that permit…
CVE-2018-15906 — High (CVSS 7.2): SolarWinds Serv-U FTP Server 15.1.6 allows remote authenticated users to execute arbitrary code by leveraging the…

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