CVE-2024-47873

EUVD-2024-3279
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 38%
Affected Products (NVD)
VendorProductVersion
phpofficephpspreadsheet
𝑥
< 1.29.4
phpofficephpspreadsheet
2.0.0 ≤
𝑥
< 2.1.3
phpofficephpspreadsheet
2.2.0 ≤
𝑥
< 2.3.2
phpofficephpspreadsheet
3.3.0 ≤
𝑥
< 3.4.0
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
phpofficephpspreadsheet
𝑥
< 1.29.4
ADP
phpofficephpspreadsheet
2.0.0 ≤
𝑥
< 2.1.3
ADP
phpofficephpspreadsheet
2.2.0 ≤
𝑥
< 2.3.2
ADP
phpofficephpspreadsheet
3.3.0 ≤
𝑥
< 3.4.0
ADP