CVE-2026-6954 Multiple vulnerabilities in Intermark IT's WebControl CMS
Attackers can inject malicious scripts via the urlDestino parameter in WebControl CMS to steal session cookies or perform actions on behalf of victims.
- 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-2026-6954?
CVE-2026-6954 is a medium-severity cross-site scripting vulnerability in Intermark IT WebControl CMS, published on 30 Jun 2026. 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
Cross-Site Scripting (XSS) vulnerability in Intermark IT's WebControl CMS v3.5. This vulnerability allows an attacker to execute JavaScript code or inject a dynamic iframe into the victim’s browser by sending a malicious URL via the 'urlDestino' parameter in '/portal.do'. This vulnerability can be exploited to steal sensitive user data, such as session cookies, display phishing interfaces, or perform actions on the user’s behalf.
Weakness: CWE-79
Which versions are affected by CVE-2026-6954?
How do I fix CVE-2026-6954?
No fix has been published for CVE-2026-6954 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-2026-6954 being exploited?
There is no known exploitation of CVE-2026-6954 in the wild and no public exploit code.
Sources
Also known as GHSA-865c-wrhg-fwg8.