CVE-2023-42346
Alkacon OpenCms is vulnerable to XXE when the <!DOCTYPE> refers to an external host
Alkacon OpenCms before 16 allows XXE when the <!DOCTYPE> refers to an external host.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Alkacon OpenCms before 16 allows XXE when the <!DOCTYPE> refers to an external host.
- Record
CVE-2023-42346- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-611
- Updated
- 2026-11-02
EUVDEUVD-2023-46799
Alkacon OpenCms before 16 allows XXE when the <!DOCTYPE> refers to an external host.
- Record
EUVD-2023-46799- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-pj6p-9p8x-5mfc
Alkacon OpenCms is vulnerable to XXE when the <!DOCTYPE> refers to an external host
Alkacon OpenCms before 16 allows XXE when the <!DOCTYPE> refers to an external host.
- Record
GHSA-pj6p-9p8x-5mfc- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-611
- Updated
- 2026-11-02
NVD
Alkacon OpenCms before 16 allows XXE when the <!DOCTYPE> refers to an external host.
- Record
CVE-2023-42346- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-611
- Updated
- 2026-11-02
OSVGHSA-pj6p-9p8x-5mfc
Alkacon OpenCms is vulnerable to XXE when the <!DOCTYPE> refers to an external host
Alkacon OpenCms before 16 allows XXE when the <!DOCTYPE> refers to an external host.
- Record
GHSA-pj6p-9p8x-5mfc- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-611
- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.opencms:opencms-coreMaven |
before 16.0 | 16.0 |
org.opencms:opencms-coreMaven |
before 16.0, plus listed versions 10.0.010.0.110.5.010.5.110.5.2 Show 24 moreShow less10.5.310.5.411.0.011.0.111.0.212.013.014.015.08.0.18.0.28.0.38.0.3-rev8.0.3.18.0.48.5.08.5.18.5.29.0.09.0.19.5.09.5.19.5.29.5.3 |
16.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-42346 is a high vulnerability (CVSS 7.5) in org.opencms:opencms-core, published May 8, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.23%, the 14th percentile. Fixed in org.opencms:opencms-core 16.0.