CVE Explorer

CVE-2026-48062

CodeIgniter is a PHP full-stack web framework. Prior to 4.7.3, the ext_in upload validation rule in system/Validation/StrictRules/FileRules.php checked the MIME-derived guessed extension instead of the client-provided filename extension. As a result, an uploaded file named shell.php containing GIF-like content could pass validation such as uploaded[avatar]|is_image[avatar]|mime_in[avatar,image/gif]|ext_in[avatar,gif] because the detected MIME type maps to gif, even though the uploaded filename e

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:fc3621ca9dc842617781c3a820255cbd49213cfaa79cd79d5314955dc62551c1

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"CodeIgniter4","vendor":"codeigniter4","versions":[{"status":"affected","version":"< 4.7.3"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:58636febfe7465d00a9fcb5468a45d3dc16035f2471bb959b6c922419893f001 · sha256:ec0d2980988deac1… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:58636febfe7465d00a9fcb5468a45d3dc16035f2471bb959b6c922419893f001 · sha256:ec0d2980988deac1… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-434","description":"CWE-434: Unrestricted Upload of File with Dangerous Type","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:58636febfe7465d00a9fcb5468a45d3dc16035f2471bb959b6c922419893f001 · sha256:ec0d2980988deac1… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"https://github.com/codeigniter4/CodeIgniter4/commit/29299349e7d232e9532767c7cefaed30957309be","tags":["x_refsource_MISC"],"url":"https://github.com/codeigniter4/CodeIgniter4/commit/29299349e7d232e9532767c7cefaed30957309be"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:58636febfe7465d00a9fcb5468a45d3dc16035f2471bb959b6c922419893f001 · sha256:ec0d2980988deac1… · /containers/cna/references/1

{"name":"https://github.com/codeigniter4/CodeIgniter4/releases/tag/v4.7.3","tags":["x_refsource_MISC"],"url":"https://github.com/codeigniter4/CodeIgniter4/releases/tag/v4.7.3"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:58636febfe7465d00a9fcb5468a45d3dc16035f2471bb959b6c922419893f001 · sha256:ec0d2980988deac1… · /containers/cna/references/2

{"name":"https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-2gr4-ppc7-7mhx","tags":["x_refsource_CONFIRM"],"url":"https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-2gr4-ppc7-7mhx"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:58636febfe7465d00a9fcb5468a45d3dc16035f2471bb959b6c922419893f001 · sha256:ec0d2980988deac1… · /containers/cna/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.

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