CVE-2025-29790: Contao Vulnerable to Cross-Site Scripting (XSS) through SVG uploads

CVE-2025-29790 · Severity: medium · CVSS 4 · Published 2025-03-18

Contao Vulnerable to Cross-Site Scripting (XSS) through SVG uploads

Technologies: contao/core-bundle (Packagist). Vendors: Packagist.

Quick answers

Is CVE-2025-29790 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-29790 being exploited in the wild.
How severe is CVE-2025-29790?
Medium severity, with a CVSS score of 4, published 18 March 2025.
Which products and versions are affected?
contao/core-bundle (Packagist) ECOSYSTEM:introduced=4.0.0,fixed=4.13.54.
Is there a fix for CVE-2025-29790?
Yes. contao/core-bundle (Packagist): upgrade to 4.13.54 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-29790?
Check whether you run contao/core-bundle (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • contao/core-bundle (Packagist): upgrade to 4.13.54 or later
    composer require contao/core-bundle:^4.13.54

Affected products

  • contao/core-bundle (Packagist) ECOSYSTEM:introduced=4.0.0,fixed=4.13.54

Identifiers

  • CVE-2025-29790
  • GHSA-vqqr-fgmh-f626

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