CVE-2026-78209 | CVSS: 8.2 | 严重级别: HIGH
exceljs-hardened versions before 5.0.0 fail to neutralize leading equals, plus, minus, or at signs in cell values written to CSV output. Attackers who can influence exported cell values can inject formulas that execute when the CSV file is opened in a spreadsheet application, potentially exfiltrating data or performing other malicious actions.
参考链接:
• https://github.com/exceljs/exceljs
• https://github.com/exceljs/exceljs/blob/v4.4.0/lib/csv/csv.js#L109-L182
• https://github.com/mateocallec/exceljs-hardened/security/advisories/GHSA-9wxc-4r
📌 数据来源: NVD 官方
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