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CVE-2026-63223

CodeIgniter is a PHP full-stack web framework. Prior to 4.7.4, the is_image and mime_in upload validation rules do not independently enforce a safe client filename extension, allowing a remote attacker to upload executable content when an application preserves the client filename and stores uploads in a web-accessible script-enabled directory. Applications are impacted when they validate uploads using is_image or mime_in without an independent safe extension check (such as ext_in on patched vers
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:664f4690aeec69e1c5f100037091e937668b4ef5ed71187758755639dd2e1fab
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"CodeIgniter4","vendor":"codeigniter4","versions":[{"status":"affected","version":"< 4.7.4"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:12607efb658d735f3ecd316ed779e81873a0939299db540d624f289cc340e24c · sha256:911f9455b91db427… · /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:v2:12607efb658d735f3ecd316ed779e81873a0939299db540d624f289cc340e24c · sha256:911f9455b91db427… · /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:v2:12607efb658d735f3ecd316ed779e81873a0939299db540d624f289cc340e24c · sha256:911f9455b91db427… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/codeigniter4/CodeIgniter4/commit/b6e9a4fa1dca2df3d3f261bdf61532df8c6420aa","tags":["x_refsource_MISC"],"url":"https://github.com/codeigniter4/CodeIgniter4/commit/b6e9a4fa1dca2df3d3f261bdf61532df8c6420aa"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:12607efb658d735f3ecd316ed779e81873a0939299db540d624f289cc340e24c · sha256:911f9455b91db427… · /containers/cna/references/1
{"name":"https://github.com/codeigniter4/CodeIgniter4/releases/tag/v4.7.4","tags":["x_refsource_MISC"],"url":"https://github.com/codeigniter4/CodeIgniter4/releases/tag/v4.7.4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:12607efb658d735f3ecd316ed779e81873a0939299db540d624f289cc340e24c · sha256:911f9455b91db427… · /containers/cna/references/2
{"name":"https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-mmj4-63m4-r6h5","tags":["x_refsource_CONFIRM"],"url":"https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-mmj4-63m4-r6h5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:12607efb658d735f3ecd316ed779e81873a0939299db540d624f289cc340e24c · sha256:911f9455b91db427… · /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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