How severe is CVE-2026-28685?

CVE-2026-28685 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-28685 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28685?

CVE-2026-28685 affects Kimai. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28685?

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

Does CVE-2026-28685 have an EU (EUVD) identifier?

Yes. CVE-2026-28685 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9994.

When was CVE-2026-28685 published?

CVE-2026-28685 was published on 2026-03-06 and last updated on 2026-06-17.

CVE-2026-28685

CVE-2026-28685 is a medium-severity vulnerability in Kimai with a CVSS 3.x base score of 6.5. 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-285.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9994
Weakness: CWE-285
Affected product: Kimai
Published: 2026-03-06
Last modified: 2026-06-17

Description

Kimai is a web-based multi-user time-tracking application. Prior to version 2.51.0, "GET /api/invoices/{id}" only checks the role-based view_invoice permission but does not verify the requesting user has access to the invoice's customer. Any user with ROLE_TEAMLEAD (which grants view_invoice) can read all invoices in the system, including those belonging to customers assigned to other teams. This issue has been patched in version 2.51.0.

Frequently asked questions

What is CVE-2026-28685?: Kimai is a web-based multi-user time-tracking application. Prior to version 2.51.0, "GET /api/invoices/{id}" only checks the role-based view_invoice permission but does not verify the requesting user has access to the invoice's customer. Any user with ROLE_TEAMLEAD (which grants view_invoice) can read all invoices in the system, including those belonging to customers assigned to other teams. This issue has been patched in version 2.51.0.
How severe is CVE-2026-28685?: CVE-2026-28685 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-28685 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28685?: CVE-2026-28685 affects Kimai. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28685?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-28685 have an EU (EUVD) identifier?: Yes. CVE-2026-28685 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9994.
When was CVE-2026-28685 published?: CVE-2026-28685 was published on 2026-03-06 and last updated on 2026-06-17.

References

Affected products (1)

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

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