Description
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 and 5.3.4 have a patch for this issue. As a workaround, remove upload fields from frontend forms and disable uploads for untrusted back end users.
References (4)
Core 4
Core References
Vendor Advisory x_refsource_confirm
https://github.com/contao/contao/security/advisories/GHSA-v24p-7p4j-qvvf
Patch x_refsource_misc
https://github.com/contao/contao/commit/878d28dbe0f408740555d6fc8b634bd3f8febfce
Patch x_refsource_misc
https://github.com/contao/contao/commit/b794e14fff070101bf6a885da9b1a83395093b4d
Vendor Advisory x_refsource_misc
https://contao.org/en/security-advisories/cross-site-scripting-in-the-file-manager
Scores
CVSS v3
5.4
EPSS
0.0140
EPSS Percentile
80.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (2)
contao/contao
4.0.0 - 4.13.40
contao/core-bundle
4.0.0 - 4.13.40Packagist
Published
Apr 09, 2024
Tracked Since
Feb 18, 2026