OpenCMS Cross-Site Scripting vulnerability
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. Another could having the roles of gallery editor or VFS resource manager will have the permission to upload images in the .svg format containing JavaScript code. The code will be executed the moment another user accesses the image.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.opencms:opencms-core | >= 16.0, < 17.0 | 17.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- Java / Kotlin (Maven)
- Package
org.opencms:opencms-core- Disclosed
- 30.05.2024
- Updated
- 11.10.2026 12:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-vg6x-pchq-98mg - CC BY 4.0
Vulnerability history: org.opencms:opencms-core
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 31
- First → latest
- 11.2019 05.2026
- Without a fix
- 4
- Exploited in attacks
- 0
Severity breakdown
- High 3
- Medium 17
- Low 11
Disclosures per year
- 2019: 4
- 2020: 0
- 2021: 1
- 2022: 15
- 2023: 3
- 2024: 1
- 2025: 3
- 2026: 4
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OpenCMS Cross-Site Scripting vulnerability this entry
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