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CVE-2026-28793

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

Published: Mar 12, 2026Updated: Mar 13, 2026 Sources: CVE List NVD GHSACWE-22
8.4HIGH
NVD MITRE
EPSS Score
0.2%
Top 89.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-22

Affected Products

@tinacms
oss-projectaka tina cms
cliLibrary
Web & CMS Plugins / cms-core
ssw
aka tinacms/cli, tinacms/graphql, tina cms
tinacms\/cliMixed
Web & CMS Plugins / cms-core
npm
package-ecosystem
@tinacms/cli
OSS Libraries

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://github.com/tinacms/tinacms/security/advisories/GHSA-2f24-mg4x-534q
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-28793
nvd.nist.gov
https://github.com/tinacms/tinacms
github.com

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