CVE-2025-59115 Stored XSS in Windu CMS
Attackers can inject malicious scripts into the logon page, which execute when an admin views the logs, potentially leading to session hijacking or site compromise.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-59115?
CVE-2025-59115 is a medium-severity cross-site scripting vulnerability in JCD Windu CMS, published on 18 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Windu CMS is vulnerable to Stored Cross-Site Scripting (XSS) in the logon page where input data has no proper validation. Malicious attacker can inject arbitrary HTML and JS into website, which will be rendered/executed when visiting logs page by admin.
Only version 4.1 was tested and confirmed as vulnerable. This issue was fixed in version 4.1 build 2250.
Weakness: CWE-79
Which versions are affected by CVE-2025-59115?
It affects 1 product.
Products include Windu Windu Cms.
How do I fix CVE-2025-59115?
No fix has been published for CVE-2025-59115 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-2025-59115 being exploited?
There is no known exploitation of CVE-2025-59115 in the wild and no public exploit code.
Other vulnerabilities in JCD Windu CMS
Sources
Also known as GHSA-9fmc-cmf8-76mj.