CVE-2024-5520

Cross-Site Scripting stored in Alkacon OpenCMS

Description

Two Cross-Site Scripting vulnerabilities have been discovered in Alkacon's OpenCMS affecting version 16, which could allow a user with sufficient privileges to create and modify web pages through the admin panel, can execute malicious JavaScript code, after inserting code in the “title” field.

Remediation

Solution:

  • The Cross-Site Scripting vulnerability through the “title” field has been fixed in version 17. However, the vendor has stated that the Cross-Site Scripting vulnerability through images in .svg format will not be fixed because filtering the JavaScript code of .svg files could bring unwanted effects.

Category

6.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.08%
Third-Party Advisory incibe.es
Affected: Alkacon OpenCMS
Published at:
Updated at:

References

Link Tags
https://www.incibe.es/en/incibe-cert/notices/aviso/cross-site-scripting-stored-alkacon-opencms third party advisory

Frequently Asked Questions

What is the severity of CVE-2024-5520?
CVE-2024-5520 has been scored as a medium severity vulnerability.
How to fix CVE-2024-5520?
To fix CVE-2024-5520: The Cross-Site Scripting vulnerability through the “title” field has been fixed in version 17. However, the vendor has stated that the Cross-Site Scripting vulnerability through images in .svg format will not be fixed because filtering the JavaScript code of .svg files could bring unwanted effects.
Is CVE-2024-5520 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-5520 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-5520?
CVE-2024-5520 affects Alkacon OpenCMS.
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