CVE-2026-44298

MEDIUM

4.1

Description

Kimai is an open-source time tracking application. From version 2.32.0 to before version 2.56.0, users with the role System-Admin (ROLE_SYSTE_ADMIN) and the permission upload_invoice_template can upload PDF invoice templates, which can call pdfContext.setOption('associated_files', ...) inside the sandboxed Twig render. This is forwarded to mPDF's SetAssociatedFiles(), whose writer calls file_get_contents($entry['path']) during PDF output and embeds the bytes as a FlateDecode stream in the PDF. Any file readable by the PHP worker is returned to the attacker inside the rendered invoice. This issue has been patched in version 2.56.0.

CVE Details

CVSS v3.1 Score4.1

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredHIGH

User InteractionNONE

Published5/8/2026

Last Modified5/8/2026

Sourcenvd

Honeypot Sightings0

Affected Products

kimai:kimai

Weaknesses (CWE)

CWE-22

References

https://github.com/kimai/kimai/releases/tag/2.56.0(security-advisories@github.com)

https://github.com/kimai/kimai/security/advisories/GHSA-h5fh-7hwr-97mw(security-advisories@github.com)

IOC Correlations

No correlations recorded

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