CVE-2026-48944
Joomla Extension - getk2.com - Exposure of sensitive files via attachment copy in K2 extension for Joomla < 2.26
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
The K2 frontend article-save handler accepts an `attachment[N][existing]` POST field that is concatenated with `JPATH_SITE/` and passed to `JFile::copy()`. `JPath::clean` does NOT strip `..`, and there is no allow-list of source paths. An Author can therefore copy `configuration.php` (or any other file readable by the web user — including `../../../etc/passwd`) into `/media/k2/attachments/`, then retrieve the contents via the K2 attachment-download endpoint.
| CWE | CWE-22 |
| Vendor | getk2.com |
| Product | k2 extension for joomla |
| Published | Jun 25, 2026 |
| Last Updated | Jun 25, 2026 |
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Affected Versions
getk2.com / K2 extension for Joomla
1.0-2.26
Credits
Matan Bahar Niv Kochan