Is CVE-2026-48944 actively exploited?

No active exploitation of CVE-2026-48944 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-48944 be exploited remotely?

Yes. CVE-2026-48944 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-48944?

CVE-2026-48944 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-48944

CWE-22Published: June 25, 2026· Updated: Jun 28, 2026

6.5

CVSS v3.1

EPSS:0.29%probability of exploitation in 30 daysPercentile:21.2th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-48944 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.