How severe is CVE-2021-3628?

CVE-2021-3628 has a CVSS 3.x base score of 4.6, 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-2021-3628 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3628?

CVE-2021-3628 affects Openkm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3628?

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

When was CVE-2021-3628 published?

CVE-2021-3628 was published on 2021-08-30 and last updated on 2026-06-17.

CVE-2021-3628

CVE-2021-3628 is a medium-severity vulnerability in Openkm with a CVSS 3.x base score of 4.6. 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 4.6)
CVSS v2: 3.5
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Openkm
Published: 2021-08-30
Last modified: 2026-06-17

Description

OpenKM Community Edition in its 6.3.10 version is vulnerable to authenticated Cross-site scripting (XSS). A remote attacker could exploit this vulnerability by injecting arbitrary code via de uuid parameter.

Frequently asked questions

What is CVE-2021-3628?: OpenKM Community Edition in its 6.3.10 version is vulnerable to authenticated Cross-site scripting (XSS). A remote attacker could exploit this vulnerability by injecting arbitrary code via de uuid parameter.
How severe is CVE-2021-3628?: CVE-2021-3628 has a CVSS 3.x base score of 4.6, 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-2021-3628 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3628?: CVE-2021-3628 affects Openkm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3628?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-3628 published?: CVE-2021-3628 was published on 2021-08-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openkm:openkm:6.3.10:*:*:*:community:*:*:*

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