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CVE-2026-107850: contao >= 5.7.1, < 5.7.12
CVE-2026-107850 affects contao/core-bundle. CVSS 3.1 base score 4.3 (ghsa). Affected range: >= 5.7.1, < 5.7.12. Fixed version: 5.7.12.
Affected technology
contao · >= 5.7.1, < 5.7.12
contao
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required
What an attacker can do
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module can list every tl_preview_link record, obtain signed share URLs created by other users, and use them to view unpublished pages with showUnpublished despite lacking page permission. Vendor/CNA’s CVSS 3.1 assessment (base score 4.3/10) rates confidentiality impact as low; integrity and availability impact as none.
- CWE
- CWE-639, CWE-862
- Product
- contao/core-bundle
- CCR priority
- 17.2 /100 (P5)
- CVSS 3.1
- 4.3 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N · Vendor/CNA
- KEV
- no
Provenance
- GitHub Advisory Database · Source record · observed 2026-10-09 22:06:25.045838+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-09 22:15:56.610150+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-107850.html