CVE-2026-48944 (GCVE-0-2026-48944)

Vulnerability from cvelistv5 – Published: 2026-06-25 15:24 – Updated: 2026-06-28 18:37
VLAI
Title
Joomla Extension - getk2.org - Exposure of sensitive files via attachment copy in K2 extension for Joomla < 2.26
Summary
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.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 18:42 UTC
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory
Assigner
Joomla CNA under the mitre root
CNA scorecard C 73/100 over 381 records in the last 180 days details
References
URL Tags
https://www.getk2.org/ product
Impacted products
Vendor Product Version CPE status
getk2.org K2 extension for Joomla Affected: 1.0-2.26
guessed Create a notification for this product.
Credits
Matan Bahar Niv Kochan
Show details on NVD website
To clipboard 

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