CVE-2026-48062
File-upload validation bypass in CodeIgniter allows remote code execution.
Is CVE-2026-48062 being exploited?
Not confirmed. CVE-2026-48062 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.78% probability of exploitation in the next 30 days.
How severe is CVE-2026-48062?
CVE-2026-48062 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-48062?
Yes. A fix has been recorded for CVE-2026-48062. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-48062 affect?
CVE-2026-48062 affects CodeIgniter < 4.7.3, Apps using ext_in validation rule, Apps saving uploads with $file->move($path) to web root. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-48062?
Upgrade to CodeIgniter 4.7.3, store uploads outside web root, validate extensions server-side.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attackers can upload PHP/executable files disguised as benign MIME types and achieve remote code execution if app saves original filenames to a web-accessible directory.
Immediate action required
- affected< 4.7.3
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.