CVE-2026-2735

MEDIUM

Stored Cross-Site Scripting (XSS) vulnerability in Alkacon's OpenCms

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-2735 has a selected CVSS score of 5.1 (medium).

Description

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.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Feb 20, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

OpenCms

Browse Alkacon / OpenCms

Default status: unaffected

CVE List18.0affected

References

2