CVEvulnerability
CVE-2026-78208
8.7 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-08-24
- Last modified
- 2026-10-14
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 8.7 HIGH — 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-73
Description
exceljs through 4.4.0 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.
Related
Weakness · CWE (1)
- CWE-73 External Control of File Name or Path weakness
References
- https://github.com/exceljs/exceljs github.com
- https://github.com/exceljs/exceljs/blob/v4.4.0/lib/doc/workbook.js#L142-L147 github.com
- https://github.com/exceljs/exceljs/blob/v4.4.0/lib/xlsx/xlsx.js#L421-L429 github.com
- https://github.com/mateocallec/exceljs-hardened/security/advisories/GHSA-m8mg-8574-gm3m github.com
- https://www.vulncheck.com/advisories/exceljs-through-path-traversal-via-unvalidated-addimage-filename www.vulncheck.com