Code Injection in CodeIgniter4 - #VU155858
Published: October 15, 2026
Vulnerability identifier: #VU155858
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary PHP code.
The vulnerability exists due to code injection in View Parser conditional tags when rendering user-editable template source with unrestricted conditionals. A remote user can edit template source to include malicious conditional tags to execute arbitrary PHP code.
Applications using only developer-controlled templates are not affected.
Affected software
CodeIgniter4
Remediation
Install security update from vendor's website.
CodeIgniter4 - update to 4.7.5