Security advisories

Here you will find a list of vulnerabilities that have already been found and fixed in Contao. If you think that you have found a security issue in Contao, please report it according to our security policy.

by Leo Feyer

Cross-site scripting through SVG uploads

Date
18.03.2025

CVE ID
CVE-2025-29790

Package
contao/core-bundle

Affected versions
>=4.0.0

Patched versions
4.13.54, 5.3.30, 5.5.6

Security advisory

by Leo Feyer

Insert tag injection via canonical URLs

Date
17.09.2024

CVE ID
CVE-2024-45612

Package
contao/core-bundle

Affected versions
>=4.13.0

Patched versions
4.13.49, 5.3.15, 5.4.3

Security advisory

by Leo Feyer

Directory traversal in the FileSelector widget

Date
17.09.2024

CVE ID
CVE-2024-45604

Package
contao/core-bundle

Affected versions
<4.13.49

Patched versions
4.13.49

Security advisory

by Leo Feyer

Remote command execution through file uploads

Date
17.09.2024

CVE ID
CVE-2024-45398

Package
contao/core-bundle

Affected versions
>=4.0.0

Patched versions
4.13.49, 5.3.15, 5.4.3

Security advisory

by Leo Feyer

Session cookie disclosure in the crawler

Date
09.04.2024

CVE ID
CVE-2024-28235

Package
contao/core-bundle

Affected versions
>=4.9.0

Patched versions
4.13.40, 5.3.4

Security advisory

by Leo Feyer

Cross-site scripting in the file manager

Date
09.04.2024

CVE ID
CVE-2024-28190

Package
contao/core-bundle

Affected versions
>=4.0.0

Patched versions
4.13.40, 5.3.4

Security advisory

by Leo Feyer

Insert tag injection via the form generator

Date
09.04.2024

CVE ID
CVE-2024-28191

Package
contao/core-bundle

Affected versions
>=4.0.0

Patched versions
4.13.40, 5.3.4

Security advisory

by Leo Feyer

Remember-me tokens are not cleared after a password change

Date
09.04.2024

CVE ID
CVE-2024-30262

Package
contao/core-bundle

Affected versions
<4.13.40

Patched versions
4.13.40

Security advisory

by Leo Feyer

Insufficient BBCode sanitization

Date
09.04.2024

CVE ID
CVE-2024-28234

Package
contao/comments-bundle

Affected versions
>=2.0.0

Patched versions
4.13.40, 5.3.4

Security advisory

by Leo Feyer

Cross-site scripting in widgets with units

Date
25.07.2023

CVE ID
CVE-2023-36806

Package
contao/core-bundle

Affected versions
>=4.0.0

Patched versions
4.9.42, 4.13.28, 5.1.10

Security advisory