CVE-2026-28793CWE-22

Path Traversal Leading to Arbitrary File Read, Write and Delete in TinaCMS

High · published March 12, 2026

CVSS v3.1
8.4
EPSS
0%
Percentile
12.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.4 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00222 · 12.2th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-03-12T16:50Z
EPSS history
Timeline
  • 12 MAR 16:50Z
    Path Traversal Leading to Arbitrary File Read, Write and Delete in TinaCMS
    cvelistv5