CVE-2026-40383

published 2026-05-26

CVE-2026-40383: An improper validation of user-supplied input leads to a local file inclusion vulnerability.

Priority P3 54 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

An improper validation of user-supplied input leads to a local file inclusion vulnerability.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
joomla!_project	joomla!_cms	—	—
joomla!_project	joomla!_cms	—	—
joomla	joomla_!	>= 3.2.1 < 5.4.6	5.4.6
joomla	joomla_!	>= 6.0.0 < 6.1.1	6.1.1

CVSS provenance

nvd v3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v4.0 7.5 HIGH 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

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-22