CVE-2023-42346 json
Alkacon OpenCms is vulnerable to XXE when the <!DOCTYPE> refers to an external host
published 2026-05-08 6 mo ago modified 2026-10-28 11 d ago also GHSA-pj6p-9p8x-5mfc , EUVD-2023-46799
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 14%
- public exploits
- 0
- none known
Summary
Alkacon OpenCms before 16 allows XXE when the <!DOCTYPE> refers to an external host.
Patch / fix
- maven org.opencms:opencms-core 16.0
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.opencms:opencms-core | <16.0 |
16.0 |
Classification
- Weakness
-
- CWE-611 Improper Restriction of XML External Entity Reference
References
Sources
- CVE List CVE-2023-42346
- GitHub Advisory GHSA-pj6p-9p8x-5mfc
- NVD CVE-2023-42346
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