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CVE-2026-126662

7.1, high

Contao Missing Authorization Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.1, high high CVSS v3.1
EPSS, next 30 days
0.4% higher than 29.6% of scored CVEs
Exploitation
No public evidence
Published
11 Nov 20262 days ago

Description

Contao 4.0.0 before 5.3.54, 5.4.0 before 5.7.17, and 6.0.0 before 6.0.6 contains an access control bypass vulnerability that allows filemount-restricted backend users to modify folders outside their filemount via the file manager Edit-Multiple operation. Attackers holding the protected or syncExclude field permission can submit outside folder paths in the IDS parameter to publish protected folders or exclude them from DBAFS synchronization, exposing files for public download.

Details

Vendor
Contao
Product
Contao
Weakness
CWE-862 (opens in a new tab)
Status
Deferred
Updated
11 Nov 2026
Assigner
disclosure@vulncheck.com

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

References 9

Patches and fixes 3

Advisories 1

Other references 5

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Beyond this page

Is CVE-2026-126662 in your network?

This page tells you how dangerous CVE-2026-126662 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 13 Nov 2026, not the live upstream state.