CVE-2026-42267

Published: Mag 08, 2026 Last Modified: Mag 08, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,4
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: active
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

Kimai is an open-source time tracking application. From version 2.27.0 to before version 2.54.0, any ROLE_USER can create a tag with a formula string as its name (e.g. =SUM(54+51)) via POST /api/tags and assign it to a timesheet. When an admin exports timesheets to XLSX, ArrayFormatter.formatValue() joins tag names with implode() and returns the result unchanged. OpenSpout promotes any =-prefixed string to a FormulaCell, writing <f>SUM(54+51)</f> into the XLSX archive. Excel evaluates the formula when the file is opened. This issue has been patched in version 2.54.0.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0005
Percentile
0,1th
Updated

Single Data Point

Only one EPSS measurement is available for this CVE. Trend analysis requires multiple data points over time.

1236

Improper Neutralization of Formula Elements in a CSV File

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality
Potential Impacts:
Read Application Data Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies: Other
View CWE Details
https://github.com/kimai/kimai/security/advisories/GHSA-3xc…
https://github.com/kimai/kimai/security/advisories/GHSA-3xc2-h5r3-wv3r
https://github.com/kimai/kimai/releases/tag/2.54.0
https://github.com/kimai/kimai/releases/tag/2.54.0
https://github.com/kimai/kimai/security/advisories/GHSA-3xc…
https://github.com/kimai/kimai/security/advisories/GHSA-3xc2-h5r3-wv3r