CVE-2026-2735

Stored Cross-Site Scripting (XSS) in Alkacon's OpenCms v18.0, which occurs when user input is not properly validated when sending a POST request to ‘/blog/new-article/org.opencms.ugc.CmsUgcEditService.gwt’ using the ‘text’ parameter.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-alkacons-opencms	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:alkacon:opencms:18.0.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-19 09:16

Updated : 2026-06-17 10:31

NVD link : CVE-2026-2735

Mitre link : CVE-2026-2735

CVE.ORG link : CVE-2026-2735

JSON object : View

Products Affected

alkacon

opencms

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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