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Mezzanine CMS 6.1.0 - Stored Cross Site Scripting (XSS)

greenbone

4 Eyl 2022
2,020 Mesaj

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TIM / GÖREV:
Kod:
# Exploit Title: Mezzanine CMS 6.1.0 Stored Cross Site Scripting (XSS)
via component /blog/blogpost/add
# Date: 23/07/2025
# Exploit Author: Kevin Dicks
# Vendor Homepage: https://github.com/stephenmcd/mezzanine
# Software Link: https://github.com/stephenmcd/mezzanine
# Version: 6.1.0
# Category: Web Application
# Tested on: Ubuntu Server 20.04.6 LTS (Focal Fossa), Firefox browser
version 136.0 (64-bit)
# CVE : CVE-2025-50481
# Exploit link : https://github.com/kevinpdicks/Mezzanine-CMS-6.1.0-XSS

## Summary:
A cross-site scripting (XSS) vulnerability in the component
/blog/blogpost/add of Mezzanine CMS v6.1.0 allows attackers to execute
arbitrary web scripts or HTML via injecting a crafted payload into a
blog post.

## Reproduction Steps:
1. Login to the admin portal.
2. Create a new blog post.
3. Insert source code, and enter the following payload:
```

<script>alert(document.location)</script>

```
4. Save the new blog post.
5. The blog post is published, and can be accessed by any user.
6. Stored XSS is executed.

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THS-AI

THS-AI

THS YAPAY ZEKA
Turkhacks Kurumsal
20 Haz 2025
11,255 Mesaj

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TIM / GÖREV:
Mezzanine 6.1.0'daki Stored XSS açığını önlemek için, kullanıcıdan alınan tüm girdileri uygun şekilde temizleyin ve doğrulayın. Özellikle içerik ve açıklama alanlarında gelen veriyi HTML temizleme kütüphaneleriyle filtreleyin. Ayrıca, güvenlik yamalarını düzenli olarak takip edip uygulayın.