Threats Tagged 'cve-2026-35453'
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Threats Tagged 'cve-2026-35453'
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CVE-2026-35453: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in PHPOffice PhpSpreadsheetCVE-2026-35453 0 CVE-2026-35453 is a cross-site scripting (XSS) vulnerability in the PHPOffice PhpSpreadsheet library affecting multiple versions up to 5.6.0. The issue arises because the HTML Writer component fails to properly escape output when a cell uses a custom number format with the @ text placeholder combined with additional literal text. This allows an attacker who can control spreadsheet cell content to inject arbitrary HTML and JavaScript into the generated output. The vulnerability has a medium severity with a CVSS score of 4.8. Fixes have been released in PhpSpreadsheet versions 1.30.4, 2. Join the discussion | CVE Database V5 | 05/05/2026, 19:39:54 UTC Added: 05/05/2026, 20:06:26 UTC |
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