CVE-2023-40986 Cross-site scripting in n/a
Attackers can execute arbitrary scripts via stored XSS in Webmin's Usermin Configuration Custom field, potentially compromising administrator sessions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-40986?
CVE-2023-40986 is a medium-severity cross-site scripting vulnerability in Webmin Webmin, published on 15 Sep 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A stored cross-site scripting (XSS) vulnerability in the Usermin Configuration function of Webmin v2.100 allows attackers to execute arbitrary web sripts or HTML via a crafted payload injected into the Custom field.
Weakness: CWE-79
Which versions are affected by CVE-2023-40986?
It affects 1 product.
Products include Webmin Webmin.
How do I fix CVE-2023-40986?
No fix has been published for CVE-2023-40986 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-2023-40986 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-40986 exists.
Other vulnerabilities in Webmin Webmin
Sources
Also known as GHSA-j32r-j9mg-wfm2.