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    CVE-2024-45291

    PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. It's possible for an attacker to construct an XLSX file that links images from arbitrary paths. When embedding images has been enabled in HTML writer with `$writer->setEmbedImages(true);` those files will be included in the output as `data:` URLs, regardless of the file's type. Also URLs can be used for embedding, resulting in a Server-Side Request Forgery vulnerability. When embedding images has been enabled, an attacker can read arbitrary files on the server and perform arbitrary HTTP GET requests. Note that any PHP protocol wrappers can be used, meaning that if for example the `expect://` wrapper is enabled, also remote code execution is possible. This issue has been addressed in release versions 1.29.2, 2.1.1, and 2.3.0. All users are advised to upgrade. there are no known workarounds for this vulnerability.

    Published:Oct 7, 2024
    Last Modified:Oct 16, 2024
    EPS:Oct 7, 2024
    EPSS Score:0.00355
    CVSS Score:6.3

    Affected Products

    Vendor
    Phpoffice
    Product
    Phpspreadsheet

    Exploits

    https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-w9xv-qf98-ccq4

    Related CVEs

    CVE-2026-59932 (CVSS 7.5) — PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. In versions 4.0.0 through 5.8.…
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    CVE-2026-59931 (CVSS 7.7) — PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. In versions 4.0.0 through 5.8.…
    CVE-2026-45034 (CVSS 9.2) — PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.5, CVE-2026-3408…
    CVE-2026-40863 (CVSS 7.5) — PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.4, 2.1.16, 2.4.5…
    CVE-2026-40902 (CVSS 7.5) — PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.4, 2.1.16, 2.4.5…
    CVE-2026-40296 (CVSS 5.4) — PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. The HTML writer skips htmlspec…
    CVE-2026-35453 (CVSS 4.8) — PhpSpreadsheet is a library for reading and writing spreadsheet files. In versions 1.30.3 and earlier, 2.0.0 t…
    CVE-2026-34084 (CVSS 9.2) — PhpSpreadsheet is a library for reading and writing spreadsheet files. In versions 1.30.2 and earlier, 2.0.0 t…
    CVE-2025-54370 (CVSS 8.7) — PhpOffice/PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to versions 1.…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High