How severe is CVE-2021-39390?

CVE-2021-39390 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-2021-39390 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-39390?

CVE-2021-39390 affects Partkeepr. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-39390?

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

When was CVE-2021-39390 published?

CVE-2021-39390 was published on 2022-05-03 and last updated on 2026-06-17.

CVE-2021-39390

CVE-2021-39390 is a medium-severity vulnerability in Partkeepr 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: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Partkeepr
Published: 2022-05-03
Last modified: 2026-06-17

Description

Stored XSS in PartKeepr 1.4.0 Edit section in multiple api endpoints via name parameter.

Frequently asked questions

What is CVE-2021-39390?: Stored XSS in PartKeepr 1.4.0 Edit section in multiple api endpoints via name parameter.
How severe is CVE-2021-39390?: CVE-2021-39390 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-2021-39390 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-39390?: CVE-2021-39390 affects Partkeepr. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-39390?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-39390 published?: CVE-2021-39390 was published on 2022-05-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:partkeepr:partkeepr:1.4.0:*:*:*:*:*:*:*

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