CVE-2026-28793

HIGH EPSS 10.3%
Published Mar 12, 20263mo ago · Modified Jun 17, 20262w ago
8.4 CVSS 3.1
High
Find Similar
Published Mar 12, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
8.4
Exploitability
2.5
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
10.3% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-22 Path Traversal Resource Mgmt

Affected Products 1

VendorProductVersionRange
sswtinacms\/cli* <2.1.8

References 1

  • github.com https://github.com/tinacms/tinacms/security/advisories/GHSA-2f24-mg4x-534q
    ExploitVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.