Tinacms Cli
CVE-2026-28793
HIGH
GHSA-2f24-mg4x-534q
Severity by source
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionGitHub Advisory
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.
AnalysisAI
High severity vulnerability in TinaCMS. 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.
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | TinaCMS CLI development server running via 'tinacms dev' command on local machine (default port 4001). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Severity: High (8.4/10.0) No EPSS data available yet Local attack vector — requires local access or user interaction to exploit No patch confirmed yet — monitor vendor channels for updates and consider mitigations Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with local access to the system can exploit this vulnerability. Successful exploitation leads to remote code execution, allowing the attacker to run arbitrary commands on the target system, install malware, or pivot to other network resources. |
| Remediation | Security advisories: - https://github.com/tinacms/tinacms/security/advisories/GHSA-2f24-mg4x-534q Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all TinaCMS instances in your environment and document their network exposure (internal vs. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Share
External POC / Exploit Code
Leaving vuln.today