{"id":"CVE-2024-45046","summary":"PhpSpreadsheet HTML writer is vulnerable to Cross-Site Scripting via style information","details":"PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. In affected versions `\\PhpOffice\\PhpSpreadsheet\\Writer\\Html` doesn't sanitize spreadsheet styling information such as font names, allowing an attacker to inject arbitrary JavaScript on the page. As a result an attacker may used a crafted spreadsheet to fully takeover a session of a user viewing spreadsheet files as HTML. This issue has been addressed in release version 2.1.0. All users are advised to upgrade. There are no known workarounds for this vulnerability.","aliases":["GHSA-wgmf-q9vr-vww6"],"modified":"2026-08-12T03:51:35.707945738Z","published":"2024-08-28T20:41:23.628Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45046.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-79"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45046.json"},{"type":"ADVISORY","url":"https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-wgmf-q9vr-vww6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-45046"},{"type":"FIX","url":"https://github.com/PHPOffice/PhpSpreadsheet/commit/f7cf378faed2e11cf4825bf8bafea4922ae44667"},{"type":"FIX","url":"https://github.com/PHPOffice/PhpSpreadsheet/pull/3957"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/phpoffice/phpspreadsheet","events":[{"introduced":"0"},{"fixed":"59ee38f7480904cd6487e5cbdea4d80ff2758719"},{"introduced":"4a77798f835119754961a97714f135826a323caa"},{"fixed":"dbed77bd3a0f68f96c0dd68ad4499d5674fecc3e"},{"fixed":"f7cf378faed2e11cf4825bf8bafea4922ae44667"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.29.1"},{"introduced":"2.0.0"},{"fixed":"2.1.0"}]}}],"versions":["1.29.0","2.0.0","1.28.0","1.27.0","1.25.2","1.25.1","1.25.0","1.24.1","1.24.0","1.23.0","1.22.0","1.21.0","1.20.0","1.19.0","1.18.0","1.17.1","1.17.0","1.16.0","1.15.0","1.14.1","1.14.0","1.13.0","1.12.0","1.11.0","1.10.1","1.10.0","1.8.2","1.8.1","1.8.0","1.7.0","1.6.0","1.5.0","1.4.1","1.4.0","1.3.1","1.3.0","1.2.1","1.2.0","1.1.0","1.0.0","1.0.0-beta2","phpexcel-last-cherry-picked-commit","phpexcel-last-release-1.8.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-45046.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}