How severe is CVE-2020-9470?

CVE-2020-9470 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-9470 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9470?

CVE-2020-9470 affects Wftpserver Wing Ftp Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-9470?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-9470 published?

CVE-2020-9470 was published on 2020-03-07 and last updated on 2026-06-17.

CVE-2020-9470

CVE-2020-9470 is a high-severity vulnerability in Wftpserver Wing Ftp Server with a CVSS 3.x base score of 7.8. 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.9
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Wftpserver Wing Ftp Server
Published: 2020-03-07
Last modified: 2026-06-17

Description

An issue was discovered in Wing FTP Server 6.2.5 before February 2020. Due to insecure permissions when handling session cookies, a local user may view the contents of the session and session_admin directories, which expose active session cookies within the Wing FTP HTTP interface and administration panel. These cookies may be used to hijack user and administrative sessions, including the ability to execute Lua commands as root within the administration panel.

Frequently asked questions

What is CVE-2020-9470?: An issue was discovered in Wing FTP Server 6.2.5 before February 2020. Due to insecure permissions when handling session cookies, a local user may view the contents of the session and session_admin directories, which expose active session cookies within the Wing FTP HTTP interface and administration panel. These cookies may be used to hijack user and administrative sessions, including the ability to execute Lua commands as root within the administration panel.
How severe is CVE-2020-9470?: CVE-2020-9470 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-9470 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9470?: CVE-2020-9470 affects Wftpserver Wing Ftp Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-9470?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-9470 published?: CVE-2020-9470 was published on 2020-03-07 and last updated on 2026-06-17.

References

https://www.hooperlabs.xyz/disclosures/cve-2020-9470.php

Affected products (1)

cpe:2.3:a:wftpserver:wing_ftp_server:*:*:*:*:*:*:*:*

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