PhpSpreadsheet HTML Writer XSS via Number Format Bypass

github.com 2026-05-07查看中文 →

Security AdvisoryHighPHPOffice

Affected:

PhpSpreadsheet >= 4.0.0, <= 5.6.0
PhpSpreadsheet >= 3.3.0, <= 3.10.4
PhpSpreadsheet >= 2.2.0, <= 2.4.4
PhpSpreadsheet >= 2.0.0, <= 2.1.15
PhpSpreadsheet <= 1.30.3

Fixed in:

5.7.0
3.10.5
2.4.5
2.1.16
1.30.4

Referenced CVEs: CVE-2026-40296 · 5.4

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