CVE-2025-29790 — Cross-site Scripting in Contao

CWE-79 — Cross-site Scripting4 documents4 sources
Severity
4.8MEDIUMNVD
EPSS
0.1%
top 66.76%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
ContaoContao Core-bundle
Timeline
PublishedMar 18

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:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Affected Packages3 packages

▶NVDcontao/contao4.0.0 — 4.13.53+2
▶Packagistcontao/core-bundle4.0.0 — 4.13.54+2
▶CVEListV5contao/contao>= 4.0.0, < 4.13.54, >= 5.0.0, < 5.3.30, >= 5.4.0, < 5.5.6+2

Patches

Patch: github.com ↗

🔴Vulnerability Details

3
GHSA
Contao Vulnerable to Cross-Site Scripting (XSS) through SVG uploads↗2025-03-18
▶
CVEList
Contao allows cross-site scripting through SVG uploads↗2025-03-18
▶
OSV
Contao Vulnerable to Cross-Site Scripting (XSS) through SVG uploads↗2025-03-18
▶
CVE-2025-29790 — Cross-site Scripting in Contao | cvebase