Gleez CMS Vulnerable to Cross-site Scripting in media/imagecache/resize

gleez/cms Updated 02 Oct 2025

Summary

14/05/2022

Disclosed on

CVE-2018-16347

CVE

No i

Fix available

Moderate

Severity

6.1

CVSS Score

CVE-2018-16347: Gleez CMS Vulnerable to Cross-site Scripting in media/imagecache/resize. Affects gleez/cms versions < 1.2.0. No fix is published. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or Browse

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats

SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml

Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile

Javascript package-lock.json · yarn.lock · pnpm-lock.yaml

PHP composer.lock

Python poetry.lock · requirements.txt · Pipfile.lock

Go go.mod

Rust Cargo.lock

Ruby Gemfile.lock

Dart pubspec.lock

C/C++ conan.lock

Elixir mix.lock

Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Background

Gleez CMS is an open-source content management system that allows users to create and manage websites. It is built on top of the Packagist ecosystem and is widely used for its flexibility and ease of use. However, a vulnerability has been discovered in Gleez CMS version 1.2.0 that exposes it to cross-site scripting (XSS) attacks. This vulnerability specifically affects the media/imagecache/resize functionality of the CMS.

Vulnerability Detail

The XSS vulnerability in Gleez CMS allows an attacker to inject malicious scripts into the media/imagecache/resize feature. This can lead to various security risks, such as stealing sensitive user information, manipulating website content, or redirecting users to malicious websites. The vulnerability has a CVSS score of 6.1, indicating a moderate severity level. The CWE-79 category is associated with this vulnerability.

How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

If upgrading to a newer version is not immediately feasible, a temporary workaround is to disable or restrict access to the media/imagecache/resize functionality. This can be achieved by modifying the CMS configuration or implementing server-side restrictions. However, this workaround should only be considered as a temporary measure, and upgrading to a patched version is highly recommended.

Conclusion

In conclusion, Gleez CMS version 1.2.0 is vulnerable to cross-site scripting (XSS) attacks in the media/imagecache/resize feature. To mitigate this vulnerability, it is crucial to upgrade to a newer version of the CMS or apply the recommended workaround. Regularly updating the CMS is essential to ensure protection against potential security risks. For further support and assistance in vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for gleez/cms →