CVE-2024-45612

Contao is an Open Source CMS. In affected versions an untrusted user can inject insert tags into the canonical tag, which are then replaced on the web page front end. Users are advised to update to Contao 4.13.49, 5.3.15 or 5.4.3. Users unable to upgrade should disable canonical tags in the root...

CVE-2024-28191

Contao is an open source content management system. Starting in version 4.0.0 and prior to version 4.13.40 and 5.3.4, it is possible to inject insert tags in frontend forms if the output is structured in a very specific way. Contao versions 4.13.40 and 5.3.4 have a patch for this issue. As a...

CVE-2024-30262

Contao is an open source content management system. Prior to version 4.13.40, when a frontend member changes their password in the personal data or the password lost module, the corresponding remember-me tokens are not removed. If someone compromises an account and is able to get a remember-me...

CVE-2024-28234

Contao is an open source content management system. Starting in version 2.0.0 and prior to versions 4.13.40 and 5.3.4, it is possible to inject CSS styles via BBCode in comments. Installations are only affected if BBCode is enabled. Contao versions 4.13.40 and 5.3.4 have a patch for this issue. A...

CVE-2024-28235

Contao is an open source content management system. Starting in version 4.9.0 and prior to versions 4.13.40 and 5.3.4, when checking for broken links on protected pages, Contao sends the cookie header to external urls as well, the passed options for the http client are used for all requests. Cont...

CVE-2024-28190

Contao is an open source content management system. Starting in version 4.0.0 and prior to version 4.13.40 and 5.3.4, users can inject malicious code in filenames when uploading files back end and front end, which is then executed in tooltips and popups in the back end. Contao versions 4.13.40 an...

CVE-2023-29200

Contao is an open source content management system. Prior to versions 4.9.40, 4.13.21, and 5.1.4, logged in users can list arbitrary system files in the file manager by manipulating the Ajax request. However, it is not possible to read the contents of these files. Users should update to Contao...

CVE-2021-35210

Contao 4.5.x through 4.9.x before 4.9.16, and 4.10.x through 4.11.x before 4.11.5, allows XSS. It is possible to inject code into the tllog table that will be executed in the browser when the system log is called in the back end...

CVE-2021-35955

Contao =4.0.0 allows backend XSS via HTML attributes to an HTML field. Fixed in 4.4.56, 4.9.18, 4.11.7...

CVE-2019-19712

Contao 4.0 through 4.8.5 has Insecure Permissions. Back end users can manipulate the details view URL to show pages and articles that have not been enabled for them...

CVE-2019-19714

Contao 4.8.4 and 4.8.5 has Improper Encoding or Escaping of Output. It is possible to inject insert tags into the login module which will be replaced when the page is rendered...

CVE-2019-19745

Contao 4.0 through 4.8.5 allows PHP local file inclusion. A back end user with access to the form generator can upload arbitrary files and execute them on the server...

CVE-2018-5478

Contao 3.x before 3.5.32 allows XSS via the unsubscribe module in the frontend newsletter extension...

CVE-2012-4383

contao prior to 2.11.4 has a sql injection vulnerability...

CVE-2014-1860

Contao CMS through 3.2.4 has PHP Object Injection Vulnerabilities...

CVE-2024-45965

Contao before 5.5.6 allows XSS via an SVG document. This affects in contao/core-bundle in Composer 4.x before 4.13.54, 5.0.x through 5.3.x before 5.3.30, and 5.4.x and 5.5..x before 5.5.6...

Cross-site Scripting (XSS)

Contao is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to improper file validation due to users being able to upload SVG files containing malicious code, which can be executed in the back end and/or front end...

CVE-2025-29790

Contao is an Open Source CMS. Users can upload SVG files with malicious code, which is then executed in the back end and/or front end. This vulnerability is fixed in Contao 4.13.54, 5.3.30, or 5.5.6...

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 in the uploadTo function in FileUpload.php. An attacker can execute scripts...

GHSA-VQQR-FGMH-F626 Contao Vulnerable to Cross-Site Scripting (XSS) through SVG uploads

Impact Users can upload SVG files with malicious code, which is then executed in the back end and/or front end. Patches Update to Contao 4.13.54, 5.3.30 or 5.5.6. Workarounds Remove svg,svgz from the allowed upload file types in the system settings and from contao.editablefiles in the config.yaml...