What’s Vulnerable › Vulnerabilities

CVE-2024-5520: Cross-Site Scripting stored in Alkacon OpenCMS

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-30 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• Alkacon OpenCms: 16.0.0

References

• https://www.incibe.es/en/incibe-cert/notices/aviso/cross-site-scripting-stored-alkacon-opencms
• https://www.incibe.es/en/incibe-cert/notices/aviso/cross-site-scripting-stored-alkacon-opencms

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