CVE-2026-107850

Katalog CVE

CVSS 4.3 · Medium EPSS 0,19%

Kerentanan Authorization Bypass Through User-Controlled Key. Skor CVSS 3.1 4.3 (Medium) menurut github.com.

Deskripsi (NVD)

Contao is an Open Source CMS. From version 5.7.1 until 5.7.12, core-bundle/config/services.yaml registers the preview access voter as Contao\CoreBundle\Security\Voter\DataContainer\PreviewAccessVoter although the shipped class is PreviewVoter. Symfony therefore omits voter autoconfiguration and removes the private service, so PreviewVoter::hasAccess() never enforces ownership. A non-admin backend user with the preview_link module can list every tl_preview_link record, obtain signed share URLs created by other users, and use them to view unpublished pages with showUnpublished despite lacking page permission. The advisory does not establish editing or deletion of foreign links. This issue is fixed in version 5.7.12.

Rincian

Terbit di NVD

9 Oktober 2026

Terakhir diubah

13 Oktober 2026

Status NVD

Received

CVSS 3.1

4.3 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-639: Authorization Bypass Through User-Controlled Key
CWE-862: Missing Authorization

EPSS (30 hari)

0,19% peluang dieksploitasi; lebih tinggi dari 8,3% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/contao/contao/commit/6b483d380a4b2dc61432c4c697e411508f93bf91
• https://github.com/contao/contao/releases/tag/5.7.12
• https://github.com/contao/contao/security/advisories/GHSA-q6wp-fr43-gm9v