CVE-2026-91751 Flextype CMS - Path Traversal

Flextype CMS through 1.0.0-alpha.3 contains a path traversal caused by improper validation of id and new_id parameters in the Entries REST API, letting API token holders read, create, or overwrite arbitrary files outside the entries directory, exploit requires API token.

CVSS base score 8.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.54% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Path Traversal
Impact
File System Read, File System Write
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Published
15 September 2026
Updated
15 October 2026
Weakness
CWE-22

Vendor fix

Update to the latest version beyond 1.0.0-alpha.3.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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