# CVE-2018-5478: Contao Cross-site Scripting vulnerabililty

Source: https://junglewise.ai/threats/cve-2018-5478-contao-cross-site-scripting-vulnerabililty  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-09-21  
License: CC BY 4.0 with a link back

CVE-2018-5478 · Severity: low · CVSS 3.1 · Published 2023-09-21

Contao Cross-site Scripting vulnerabililty

Technologies: [contao/core (Packagist)](https://junglewise.ai/threats/technologies/contao-core). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2018-5478 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2018-5478 being exploited in the wild.

**How severe is CVE-2018-5478?** Low severity, with a CVSS score of 3.1, published 21 September 2023.

**Which products and versions are affected?** contao/core (Packagist) ECOSYSTEM:introduced=3.0.0,fixed=3.5.32.

**Is there a fix for CVE-2018-5478?** Yes. contao/core (Packagist): upgrade to 3.5.32 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2018-5478?** Check whether you run contao/core (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 (Packagist): upgrade to 3.5.32 or later

  ```sh
  composer require contao/core:^3.5.32
  ```


## Affected products

- contao/core (Packagist) ECOSYSTEM:introduced=3.0.0,fixed=3.5.32

## Identifiers

- CVE-2018-5478
- GHSA-mpg7-2rx9-h5qp

## Related threats

- [contao/core PHP object injection vulnerability allows for arbitrary code execution](https://junglewise.ai/threats/contao-core-php-object-injection-vulnerability-allows-for-arbitrary-f6c6edbe)
- [contao/core Insufficient input validation allows for code injection and remote execution](https://junglewise.ai/threats/contao-core-insufficient-input-validation-allows-for-code-injection-and-aaa756a2)
- [MediaElement.js Reflected XSS in FlashMediaElement component](https://junglewise.ai/threats/cve-2016-4567-mediaelement-js-reflected-xss-in-flashmediaelement-component)
- [Contao Core directory traversal vulnerability](https://junglewise.ai/threats/cve-2015-0269-contao-core-directory-traversal-vulnerability)
- [Contao Does Not Invalidate Existing Sessions When Password Changes](https://junglewise.ai/threats/cve-2019-10641-contao-does-not-invalidate-existing-sessions-when-password)