CVE-2023-42344 Alkacon OpenCms allows remote unauthenticated attackers to obtain sensitive information
Remote unauthenticated attackers can obtain sensitive information via an XXE attack on the Chemistry servlet in Alkacon OpenCms.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-42344?
CVE-2023-42344 is a high-severity vulnerability in n/a, published on 8 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Alkacon OpenCms before 10.5.1 allows remote unauthenticated attackers to obtain sensitive information via a cmis-online/query XXE attack on a Chemistry servlet.
Weakness: CWE-611
Which versions are affected by CVE-2023-42344?
2 open source packages ship an affected version, including org.opencms:opencms-core.
| Package | Affected | Fixed in |
|---|---|---|
org.opencms:opencms-core Maven | All versions | 10.5.1 |
org.opencms:opencms-core Maven | All versions | 10.5.1 |
How do I fix CVE-2023-42344?
Upgrade org.opencms:opencms-core to 10.5.1 or later.
Is CVE-2023-42344 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-42344 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-rcc6-6q2f-m2cw.