PatchTheCVECVE-2025-47550: Unrestricted Upload of File with Dangerous Type vulnerability in Themefic Instantio instantio allows Upload a
CVE-2025-47550 is a medium-severity flaw (CVSS 6.6) affecting instantio. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Unrestricted Upload of File with Dangerous Type vulnerability in Themefic Instantio instantio allows Upload a Web Shell to a Web Server.This issue affects Instantio: from n/a through <= 3.3.16.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.6 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 60%) |
| CISA exploited list | No |
| Weakness | CWE-434 |
| Published | 2025-05-07 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · 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-2025-47550?
instantio: upgrade to newer than 3.3.16. Exact commands for each OS are on this page.
Is CVE-2025-47550 being exploited?
CVE-2025-47550 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-2025-47550 affect?
CVE-2025-47550 affects instantio. Severity is medium (CVSS 6.6). Unrestricted Upload of File with Dangerous Type vulnerability in Themefic Instantio instantio allows Upload a Web Shell to a Web Server.This issue affects Instantio: from n/a through <= 3.3.16.
How urgent is CVE-2025-47550?
Priority 33/100. No elevated risk signals yet.