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CVE-2023-6379

27
FAUCET Score

CVE-2023-6379 is a medium-severity Cross-Site Scripting (XSS) vulnerability affecting Alkacon Software Open CMS versions 14 and 15, specifically within the 'Mercury' template. An unauthenticated attacker can exploit this by tricking a user into clicking a malicious link, allowing them to inject crafted JavaScript and partially compromise the user's browsing session. While not actively exploited in the wild and lacking Metasploit or ExploitDB modules, Nuclei templates exist for detection, and there is no significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 14.0.0, < 16.0.0CPE matchmatch criteria
cpe:2.3:a:alkacon:opencms:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.75%
Probability of exploitation in next 30 days
EPSS Percentile
75.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2023-6379 · Jan 3, 2024
This CVE's current EPSS score of 0.0175 is in the 87th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.opencms:opencms-coreFixed in: 16.0.0

Vendor Advisories (1)

mavenGHSA-w62v-q77r-66ccmedium

Alkacon OpenCMS XSS via Mercury template

Dec 13, 2023

References

incibe.es / en/incibe-cert/notices/aviso/multiple-vulnerabilities-alkacon-software-opencms
Third Party Advisory