CVE-2026-48946
Published:June 25, 2026
Updated:June 29, 2026
The K2 frontend article-attachment upload path accepts files whose extension is ".php", and Apache's standard mod_php matches "\.php$" and executes them under the K2 web user. A K2 Author can upload a "shell.php", then fetch "/media/k2/attachments/shell.php" and execute arbitrary PHP code in the web server's context.
Related Resources (1)
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Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Unrestricted Upload of File with Dangerous Type
EPSS
Base Score:
0.17