CVE-2026-48946
Medium
Description
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.
SeverityMedium
CVSS6.3
Exploit probability—
ProductJoomlaworks K2
PublishedJun 25, 2026
First seenJun 25, 2026
Weakness typeCWE-434Unrestricted upload of dangerous file type
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| joomlaworks k2 | v ≤ 2.26 | — |
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