CVE-2024-47873

Katalog CVE

CVSS 7.5 · High EPSS 0,74%

Kerentanan Improper Restriction of XML External Entity Reference pada phpoffice phpspreadsheet. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. The XmlScanner class has a scan method which should prevent XXE attacks. However, prior to versions 1.9.4, 2.1.3, 2.3.2, and 3.4.0, the regexes used in the `scan` method and the findCharSet method can be bypassed by using UCS-4 and encoding guessing. An attacker can bypass the sanitizer and achieve an XML external entity attack. Versions 1.9.4, 2.1.3, 2.3.2, and 3.4.0 fix the issue.

Rincian

Terbit di NVD

18 November 2024

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-611: Improper Restriction of XML External Entity Reference

EPSS (30 hari)

0,74% peluang dieksploitasi; lebih tinggi dari 53,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-jw4x-v69f-hh5w exploit · advisory vendor
• https://github.com/PHPOffice/PhpSpreadsheet/blob/39fc51309181e82593b06e2fa8e45ef8333a0335/src/PhpSpreadsheet/R... product
• https://owasp.org/www-community/vulnerabilities/XML_External_Entity_(XXE)_Processing not applicable
• https://www.w3.org/TR/xml/#sec-guessing-no-ext-info deskripsi teknis