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CVE-2026-91751

Flextype CMS through 1.0.0-alpha.3 Path Traversal via Entries REST API

CVSS 4.0 7.2 HIGHCVSS 3.1 8.3 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-91751

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-91751

Published

flextype

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "flextype",
                    "product": "flextype",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:composer/flextype/flextype",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThanOrEqual": "1.0.0-alpha.3"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON