CVE-2023-36806

Contao cross site scripting vulnerability via input unit widget

Published Jul 25, 2023 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Contao is an open source content management system. Starting in version 4.0.0 and prior to versions 4.9.42, 4.13.28, and 5.1.10, it is possible for untrusted backend users to inject malicious code into headline fields in the back end, which will be executed both in the element preview (back end) and on the website (front end). Installations are only affected if there are untrusted back end users who have the rights to modify headline fields, or other fields using the input unit widget. Contao 4.9.42, 4.13.28, and 5.1.10 have a patch for this issue. As a workaround, disable the login for all untrusted back end users.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-1951 Cross site scripting via input unit widget
Github GHSA Github GHSA GHSA-4gpr-p634-922x Cross site scripting via input unit widget
History
Type Values Removed Values Added
CPEs cpe:2.3:a:contao:contao:-:*:*:*:*:*:*:*
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Feb 13, 2025, 4:56 PM
Reserved
Jun 27, 2023, 3:43 PM
Status
Modified
Published
Jul 25, 2023, 7:15 PM
Modified
Jun 17, 2026, 6:07 AM