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CVE-2024-45046: PhpSpreadsheet HTML writer is vulnerable to Cross-Site Scripting via style information

medium Affects phpoffice/phpexcel, phpoffice/phpspreadsheet. Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

PhpSpreadsheet HTML writer is vulnerable to Cross-Site Scripting via style information

Package
phpoffice/phpexcel Composer
Affected versions
<=1.8.2
Fixed in
no fix recorded
Severity
medium  CVSS 5.4
Exploitation
not on CISA KEV · EPSS 0% (36.1th percentile)
Published
2024-08-29
Source
osv.dev

References

PhpSpreadsheet HTML writer is vulnerable to Cross-Site Scripting via style information

Package
phpoffice/phpspreadsheet Composer
Affected versions
>=2.0.0 and <2.1.0 or <1.29.1
Fixed in
2.1.0, 1.29.1
Severity
medium  CVSS 5.4
Exploitation
not on CISA KEV · EPSS 0% (36.1th percentile)
Published
2024-08-29
Source
osv.dev

References

CWE-79
NVD recordphpoffice/phpexcel advisoriesphpoffice/phpspreadsheet advisories

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# then
vendor/bin/phpwarden deps composer.lock

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