CVE Explorer
CVE-2026-45034
PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.5, CVE-2026-34084 was patched by the helper File::prohibitWrappers. The helper calls parse_url($filename, PHP_URL_SCHEME) and then checks is_string($scheme) && strlen($scheme) > 1 to reject stream wrappers such as phar://, php://, data:// or expect://. The check is not equivalent to "does the path contain a wrapper". When the input has the form phar:///path/file.phar/inner with three or more slashes aft
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"PhpSpreadsheet","vendor":"PHPOffice","versions":[{"status":"affected","version":"< 1.30.5"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:7228488006200ea273be0ef151e1dedc7233a2dd049917ea9969827bc344ff5d · sha256:7bc84c2aa07236d6… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":9.2,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:7228488006200ea273be0ef151e1dedc7233a2dd049917ea9969827bc344ff5d · sha256:7bc84c2aa07236d6… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-502","description":"CWE-502: Deserialization of Untrusted Data","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:7228488006200ea273be0ef151e1dedc7233a2dd049917ea9969827bc344ff5d · sha256:7bc84c2aa07236d6… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"name":"https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-87m4-826x-3crx","tags":["x_refsource_CONFIRM"],"url":"https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-87m4-826x-3crx"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:7228488006200ea273be0ef151e1dedc7233a2dd049917ea9969827bc344ff5d · sha256:7bc84c2aa07236d6… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-87m4-826x-3crx"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:7228488006200ea273be0ef151e1dedc7233a2dd049917ea9969827bc344ff5d · sha256:7bc84c2aa07236d6… · /containers/adp/0/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.