Medium severity · published Mar 18, 2025
CVE-2025-29790
Contao allows cross-site scripting through SVG uploads
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
contao · contao
>= 4.0.0, < 4.13.54; >= 5.0.0, < 5.3.30; >= 5.4.0, < 5.5.6 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-29790
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-29790
Vendor Advisory
https://contao.org/en/security-advisories/cross-site-scripting-through-svg-uploads
Patch
https://github.com/contao/contao/security/advisories/GHSA-vqqr-fgmh-f626
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