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5.3

Kentico CMS 7 allows hackers to inject malicious code into your website

CVE-2024-12907 · published 1 year ago
Summary

An old version of Kentico CMS, version 7, has a security weakness that allows hackers to inject malicious code into your website. If you use this version, you're at risk of being targeted. If you're still using this version, it's recommended to upgrade to a newer version, like Kentico 8, as soon as possible.

Original advisory text
Kentico CMS in version 7 is vulnerable to a Reflected XSS attacks through manipulation of a specific GET request parameter sent to /CMSMessages/AccessDenied.aspx endpoint. Notably, support for thi...
Kentico CMS in version 7 is vulnerable to a Reflected XSS attacks through manipulation of a specific GET request parameter sent to /CMSMessages/AccessDenied.aspx endpoint.
Notably, support for this version of Kentico ended in 2016. Version 8 was tested as well and does not contain this vulnerability.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
5.3 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published2 Jan 2025
Updated4 Nov 2026
First seen7 Mar 2026
Sources
CVE-2024-12907 · NVD
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