CVE-2023-5556 Cross-site Scripting (XSS) - Reflected in structurizr/onpremises
Reflected Cross-Site Scripting in Structurizr on-premises allows attackers to execute arbitrary scripts 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-2023-5556?
CVE-2023-5556 is a medium-severity cross-site scripting vulnerability in structurizr/onpremises, published on 12 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Cross-site Scripting (XSS) - Reflected in GitHub repository structurizr/onpremises prior to 3194.
Weakness: CWE-79
Which versions are affected by CVE-2023-5556?
It affects 1 product.
Products include Structurizr On-Premises Installation.
How do I fix CVE-2023-5556?
No fix has been published for CVE-2023-5556 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-2023-5556 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-5556 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-gwm9-m7h8-rhm9.