CVE-2024-42699 OpenCMS Cross-Site Scripting vulnerability

Medium 6.5 Published Updated

Remote attackers can inject JavaScript via image titles in the article creation function, potentially executing code in victim browsers.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-42699?

CVE-2024-42699 is a medium-severity cross-site scripting vulnerability in n/a, published on 21 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Cross Site Scripting vulnerability in Create/Modify article function in Alkacon OpenCMS 17.0 allows remote attacker to inject javascript payload via image title sub-field in the image field

Weakness: CWE-79

Which versions are affected by CVE-2024-42699?

2 open source packages ship an affected version, including org.opencms:opencms-core. It affects 1 product.

PackageAffectedFixed in
org.opencms:opencms-core MavenAll versions to 17.0None
org.opencms:opencms-core MavenAll versions to 17.0None

Products include Alkacon Opencms.

How do I fix CVE-2024-42699?

No fix has been published for CVE-2024-42699 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2024-42699 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-42699 exists.

Sources

Also known as GHSA-h75c-f2xx-9vxv.

Is CVE-2024-42699 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free