CVE-2026-78208
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Summary
exceljs-hardened before 5.0.0 contains a path traversal vulnerability in the Workbook.addImage() function that fails to validate file paths. Attackers can supply arbitrary file paths to read any file accessible to the Node.js process and embed it in the generated workbook.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| exceljs | exceljs | 0 <= 4.4.0 | affected |
Weaknesses
- CWE-73: External Control of File Name or Path
References
- https://github.com/exceljs/exceljs
- https://github.com/mateocallec/exceljs-hardened/security/advisories/GHSA-m8mg-8574-gm3m
- https://github.com/exceljs/exceljs/blob/v4.4.0/lib/doc/workbook.js#L142-L147
- https://github.com/exceljs/exceljs/blob/v4.4.0/lib/xlsx/xlsx.js#L421-L429
- https://www.vulncheck.com/advisories/exceljs-through-path-traversal-via-unvalidated-addimage-filename
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.