PT-2026-66847

Name of the Vulnerable Software and Affected Versions Contao versions 5.7.0 through 5.7.6 Description An authenticated backend user with access to a specific job can perform a cross-job authorization bypass. By requesting an attachment identifier containing ../ segments, the user can force the jo...

PT-2026-66843

Contao is an Open Source CMS. In versions 4.13.40 through 5.3.46 and 5.7.0-RC1 through 5.7.6, the crawler leaks auth credentials to external hosts. Contao's crawler tries to prevent confidential HTTP client options from being sent to external domains by creating a scoped client: full options for...

PT-2026-66837

Contao is an Open Source CMS. From 5.3.35 through 5.3.47 and from 5.7.0-RC1 through 5.7.8, the Feed Reader front-end module passes configured RSS feed URLs from FeedReaderController::getResponse to feedIo-read without scheme or private-address validation, allowing a backend user with module-edit...

Server-side Request Forgery (SSRF)

Overview contao/core-bundle is an Open Source PHP Content Management System for people who want a professional website that is easy to maintain. Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the Feed Reader front-end module, which passes RSS feed URLs fr...

Information Exposure

Overview contao/core-bundle is an Open Source PHP Content Management System for people who want a professional website that is easy to maintain. Affected versions of this package are vulnerable to Information Exposure via the crawler that tries to prevent confidential HTTP client options from bei...

Server-side request forgery (SSRF) via unvalidated RSS feed URLs

More info at https://contao.org/en/security-advisories/server-side-request-forgery-via-unvalidated-rss-feed-urls...

Credentials disclosure in the crawler

More info at https://contao.org/en/security-advisories/credentials-disclosure-in-the-crawler...

Credentials disclosure in the crawler

More info at https://contao.org/en/security-advisories/credentials-disclosure-in-the-crawler...

Path traversal in the jobs module

More info at https://contao.org/en/security-advisories/path-traversal-in-the-jobs-module...

Improper Control Of Dynamically-Managed Code Resources

contao/core-bundle is vulnerable to Improper Control of Dynamically-Managed Code Resources. The vulnerability is due to insufficient restrictions in template closures, which allows a back-end user with precise control over template contents to execute arbitrary PHP functions that do not require...

CVE-2018-10125

Contao before 4.5.7 has XSS in the system log...

CVE-2022-26265

Contao Managed Edition v1.5.0 was discovered to contain a remote command execution RCE vulnerability via the component phpcli parameter...

CVE-2019-11512

Contao 4.x allows SQL Injection. Fixed in Contao 4.4.39 and Contao 4.7.5...

CVE-2025-65961

Contao is an Open Source CMS. From version 4.0.0 to before 4.13.57, before 5.3.42, and before 5.6.5, it is possible to inject code into the template output that will be executed in the browser in the front end and back end. This issue has been patched in versions 4.13.57, 5.3.42, and 5.6.5. A...

CVE-2025-65960

Contao is an Open Source CMS. From version 4.0.0 to before 4.13.57, before 5.3.42, and before 5.6.5, back end users with precise control over the contents of template closures can execute arbitrary PHP functions that do not have required parameters. This issue has been patched in versions 4.13.57...

Contao is vulnerable to cross-site scripting in templates

Impact It is possible to inject code into the template output that will be executed in the browser in the front end and back end. Patches Update to Contao 4.13.57, 5.3.42 or 5.6.5. Workarounds Do not use the affected templates or patch them manually. Refsources...

Cross-site Scripting (XSS)

Overview contao/core-bundle is an Open Source PHP Content Management System for people who want a professional website that is easy to maintain. Affected versions of this package are vulnerable to Cross-site Scripting XSS via template output. An attacker can execute arbitrary scripts in the brows...

GHSA-68Q5-78XP-CWWC Contao is vulnerable to cross-site scripting in templates

Impact It is possible to inject code into the template output that will be executed in the browser in the front end and back end. Patches Update to Contao 4.13.57, 5.3.42 or 5.6.5. Workarounds Do not use the affected templates or patch them manually. Refsources...

EUVD-2025-199631

Contao is vulnerable to cross-site scripting in templates...

Insufficient Type Distinction

Overview contao/core-bundle is an Open Source PHP Content Management System for people who want a professional website that is easy to maintain. Affected versions of this package are vulnerable to Insufficient Type Distinction in the Template::once method. Backend users with sufficient privileges...