How severe is CVE-2020-14055?

CVE-2020-14055 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-14055 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-14055?

CVE-2020-14055 affects Monstaftp Monsta Ftp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-14055?

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

When was CVE-2020-14055 published?

CVE-2020-14055 was published on 2020-07-01 and last updated on 2026-06-17.

CVE-2020-14055

CVE-2020-14055 is a medium-severity vulnerability in Monstaftp Monsta Ftp with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Monstaftp Monsta Ftp
Published: 2020-07-01
Last modified: 2026-06-17

Description

Monsta FTP 2.10.1 or below is prone to a stored cross-site scripting vulnerability in the language setting due to insufficient output encoding.

Frequently asked questions

What is CVE-2020-14055?: Monsta FTP 2.10.1 or below is prone to a stored cross-site scripting vulnerability in the language setting due to insufficient output encoding.
How severe is CVE-2020-14055?: CVE-2020-14055 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-14055 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-14055?: CVE-2020-14055 affects Monstaftp Monsta Ftp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-14055?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-14055 published?: CVE-2020-14055 was published on 2020-07-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:monstaftp:monsta_ftp:*:*:*:*:*:*:*:*

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