PatchTheCVECVE-2026-39390: CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC a
CVE-2026-39390 is a medium-severity flaw (CVSS 5.5) affecting ci4ms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to 0.31.4.0, the Google Maps iframe setting (cMap field) in compInfosPost() sanitizes input using strip_tags() with an <iframe> allowlist and regex-based removal of on\w+ event handlers. However, the srcdoc attribute is not an event handler and passes all filters. An attacker with admin settings acces
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.5 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 86%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2026-04-08 |
| Last modified | 2026-07-24 |
Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-39390?
ci4ms: upgrade to newer than 0.31.3.0. Exact commands for each OS are on this page.
Is CVE-2026-39390 being exploited?
CVE-2026-39390 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-39390 affect?
CVE-2026-39390 affects ci4ms. Severity is medium (CVSS 5.5). CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to 0.31.4.0, the Google Maps iframe setting (cMap field) in compInfosPost() sanitizes input
How urgent is CVE-2026-39390?
Priority 23/100. No elevated risk signals yet.
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