CVE-2024-47873
PhpSpreadsheet XmlScanner bypass leads to XXE
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Attend
*SSVC
Descriptions
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.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Attend
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2024-10-04 CVE Reserved
- 2024-11-18 CVE Published
- 2024-11-18 CVE Updated
- 2024-11-19 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-611: Improper Restriction of XML External Entity Reference
CAPEC
References (4)
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| PHPOffice Search vendor "PHPOffice" | PhpSpreadsheet Search vendor "PHPOffice" for product "PhpSpreadsheet" | < 1.29.4 Search vendor "PHPOffice" for product "PhpSpreadsheet" and version " < 1.29.4" | en |
Affected
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| PHPOffice Search vendor "PHPOffice" | PhpSpreadsheet Search vendor "PHPOffice" for product "PhpSpreadsheet" | >= 2.0.0 < 2.1.3 Search vendor "PHPOffice" for product "PhpSpreadsheet" and version " >= 2.0.0 < 2.1.3" | en |
Affected
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| PHPOffice Search vendor "PHPOffice" | PhpSpreadsheet Search vendor "PHPOffice" for product "PhpSpreadsheet" | >= 2.2.0 < 2.3.2 Search vendor "PHPOffice" for product "PhpSpreadsheet" and version " >= 2.2.0 < 2.3.2" | en |
Affected
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| PHPOffice Search vendor "PHPOffice" | PhpSpreadsheet Search vendor "PHPOffice" for product "PhpSpreadsheet" | >= 3.3.0 < 3.4.0 Search vendor "PHPOffice" for product "PhpSpreadsheet" and version " >= 3.3.0 < 3.4.0" | en |
Affected
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