Flextype CMS through 1.0.0-alpha.3 Path Traversal via Entries REST API
Priority HIGH 67CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Flextype CMS through 1.0.0-alpha.3 fails to properly validate id and new_id parameters in the Entries REST API, allowing API token holders to read, create, or overwrite files outside the entries directory. Attackers can use traversal sequences in API requests to escape the project entries directory and manipulate arbitrary files and directories on the filesystem.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00539 45th percentileScored 2026-11-08
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-91751
- 2026-10-03 Alias added: GHSA-63h9-h8w7-v6fr
References
More flextype vulnerabilities
- TI-2026-54247 Flextype CMS 1.0.0-dev RCE via POST /api/v1/query Endpoint CVSS 4.0HIGH 7.1
- TI-2026-60281 Flextype CMS through 1.0.0-alpha.3 API Token Exposure via Query String CVSS 4.0HIGH 8.2
- TI-2026-60385 Flextype CMS 0.9.9 through 1.0.0-alpha.3 Stored XSS via Plugin Directory CVSS 4.0LOW 2.4
Sources
- CVE-2026-91751 · CVE Program
- CVE-2026-91751 · NVD
- FIRST EPSS
- GHSA-63h9-h8w7-v6fr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences