CVE-2026-40383
CRITICALCVSS 9.8/10EPSS 0.48%
Last modified
CVE-2026-40383 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An improper validation of user-supplied input leads to a local file inclusion vulnerability.. EPSS estimates a 0.48% chance of exploitation in the next 30 days.
Description
An improper validation of user-supplied input leads to a local file inclusion vulnerability.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Joomla | Joomla\! | >= 3.2.1, < 5.4.6 |
| Joomla | Joomla\! | >= 6.0.0, < 6.1.1 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-40383?
An improper validation of user-supplied input leads to a local file inclusion vulnerability.
How severe is CVE-2026-40383?
CVE-2026-40383 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.
How do I fix CVE-2026-40383?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-40383?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST