What is CVE-2023-42346?

CVE-2023-42346 is a high-severity vulnerability in N/a, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.5/10. Published 2026-05-08.

How severe is CVE-2023-42346?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2023-42346 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XXE in N/a

CVE-2023-42346

Alkacon OpenCms before 16 allows XXE when the <!DOCTYPE> refers to an external host.

Vulnerability class: XXE (XML External Entity)

EPSS: 0.001 (23.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

cve@mitre.org

Frequently asked questions

What is CVE-2023-42346?: CVE-2023-42346 is a high-severity vulnerability in N/a, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.5/10. Published 2026-05-08.
How severe is CVE-2023-42346?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-42346 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.