Executive Summary

Informations
Name CVE-2024-48917 First vendor Publication 2024-11-18
Vendor Cve Last vendor Modification 2024-11-19

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. The `XmlScanner` class has a scan method which should prevent XXE attacks. However, in a bypass of the previously reported `CVE-2024-47873`, the regexes from the `findCharSet` method, which is used for determining the current encoding can be bypassed by using a payload in the encoding UTF-7, and adding at end of the file a comment with the value `encoding="UTF-8"` with `"`, which is matched by the first regex, so that `encoding='UTF-7'` with single quotes `'` in the XML header is not matched by the second regex. 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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-48917

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-611 Information Leak Through XML External Entity File Disclosure

Sources (Detail)

https://github.com/PHPOffice/PhpSpreadsheet/blob/39fc51309181e82593b06e2fa8e4...
https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-7cc9-j4m...
https://owasp.org/www-community/vulnerabilities/XML_External_Entity_(XXE)_Pro...
Source Url

Alert History

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0
1
Date Informations
2024-11-20 00:20:28
  • Multiple Updates
2024-11-19 00:20:29
  • First insertion