How severe is CVE-2021-43515?

CVE-2021-43515 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-43515 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43515?

CVE-2021-43515 affects Kimai. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43515?

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-2021-43515 published?

CVE-2021-43515 was published on 2022-04-08 and last updated on 2026-06-17.

CVE-2021-43515

CVE-2021-43515 is a high-severity vulnerability in Kimai 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-1236.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1236
Affected product: Kimai
Published: 2022-04-08
Last modified: 2026-06-17

Description

CSV Injection (aka Excel Macro Injection or Formula Injection) exists in creating new timesheet in Kimai. By filling the Description field with malicious payload, it will be mistreated while exporting to a CSV file.

Frequently asked questions

What is CVE-2021-43515?: CSV Injection (aka Excel Macro Injection or Formula Injection) exists in creating new timesheet in Kimai. By filling the Description field with malicious payload, it will be mistreated while exporting to a CSV file.
How severe is CVE-2021-43515?: CVE-2021-43515 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-43515 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43515?: CVE-2021-43515 affects Kimai. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43515?: 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-2021-43515 published?: CVE-2021-43515 was published on 2022-04-08 and last updated on 2026-06-17.

References

https://github.com/kevinpapst/kimai2/commit/dad1b8b772947f1596175add1b4f33b791705507#diff-6774f5865dbaf8bc6c55b75bd92e6f9950ebe7834aa2efd828a19fd637e667cf

Affected products (1)

cpe:2.3:a:kimai:kimai:*:*:*:*:*:*:*:*

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