TI-2023-05855 Aliases CVE-2023-6379 GHSA-w62v-q77r-66cc

Cross-site Scripting in Alkacon Software OpenCms

LOW 31CWE-79Published 2023-12-13 · Updated 2024-10-01

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

Cross-site scripting (XSS) vulnerability in Alkacon Software Open CMS, affecting versions 14 and 15 of the 'Mercury' template. This vulnerability could allow a remote attacker to send a specially crafted JavaScript payload to a victim and partially take control of their browsing session.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01752 78th percentileScored 2026-11-07

Fix Fixed org.opencms:opencms-core (Maven): 16.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Alkacon	Open CMS	14; 15	—	No fix listed	CNA
—	org.opencms:opencms-core (Maven)	14.0.0 to before 16.0.0	16.0.0	Patch available	GHSA-w62v-q77r-66cc

Open CMS VendorAlkacon Affected 14; 15 Fixed in — No fix listed CNA
org.opencms:opencms-core (Maven) Vendor— Affected 14.0.0 to before 16.0.0 Fixed in 16.0.0 Patch available GHSA-w62v-q77r-66cc

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:alkacon:opencms::::::::	14.0.0 to before 16.0.0	Vulnerable	Alkacon

cpe:2.3:a:alkacon:opencms:*:*:*:*:*:*:*:* Versions 14.0.0 to before 16.0.0 Vulnerable ·Alkacon

Remediation

Fix · GHSA-w62v-q77r-66cc org.opencms:opencms-core (Maven) Fixed in 16.0.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2023-6379
2026-10-03 Alias added: GHSA-w62v-q77r-66cc

References

Advisory 2

Other 2

TI-2024-28583 Cross Site Scripting vulnerability in Create/Modify article function in Alkacon OpenCMS… CVSS 3.1MEDIUM 6.5
TI-2023-19187 An arbitrary file upload vulnerability in the component /workplace#!explorer of Alkacon… CVSS 3.1MEDIUM 6.1
TI-2024-27633 A stored cross-site scripting (XSS) vulnerability in Alkacon OpenCMS v17.0 allows… CVSS 3.1MEDIUM 5.4
TI-2024-27632 A stored cross-site scripting (XSS) vulnerability in Alkacon OpenCMS v17.0 allows… CVSS 3.1MEDIUM 5.4
TI-2023-15113 A stored cross-site scripting (XSS) vulnerability in alkacon-OpenCMS v11.0.0.0 allows… CVSS 3.1MEDIUM 5.4
TI-2021-07974 OpenCMS - Stored Cross-Site Scripting (XSS) in Sitemap CVSS 3.1MEDIUM 5.4

See all 31 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences