Is CVE-2026-28793 actively exploited?

No active exploitation of CVE-2026-28793 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-28793 be exploited remotely?

No. CVE-2026-28793 requires local access to exploit.

What is the CVSS score of CVE-2026-28793?

CVE-2026-28793 has a CVSS score of 8.4 (HIGH).

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HIGH

CVE-2026-28793

CWE-22Published: March 12, 2026· Updated: Mar 13, 2026

8.4

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:3.7th

Official Description

Tina is a headless content management system. Prior to 2.1.8, the TinaCMS CLI development server exposes media endpoints that are vulnerable to path traversal, allowing attackers to read and write arbitrary files on the filesystem outside the intended media directory. When running tinacms dev, the CLI starts a local HTTP server (default port 4001) exposing endpoints such as /media/list/*, /media/upload/*, and /media/*. These endpoints process user-controlled path segments using decodeURI() and path.join() without validating that the resolved path remains within the configured media directory. This vulnerability is fixed in 2.1.8.

NVD Source

Technical Analysis

CVE-2026-28793 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.4.