CVE-2026-6953 Multiple vulnerabilities in Intermark IT's WebControl CMS
Attackers can inject malicious HTML via the contact form, potentially executing scripts in victim browsers.
- 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-2026-6953?
CVE-2026-6953 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
HTML injection vulnerability in Intermark IT's WebControl CMS v3.5. This vulnerability allows an attacker to send an email containing malicious HTML code to a victim via the contact form. To exploit this vulnerability, the attacker must send a request using the 'nombreApellidos', 'dirección ', and 'comentarios ' parameters to '/processContact.do'.
Weakness: CWE-79
Which versions are affected by CVE-2026-6953?
How do I fix CVE-2026-6953?
No fix has been published for CVE-2026-6953 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-2026-6953 being exploited?
There is no known exploitation of CVE-2026-6953 in the wild and no public exploit code.
Sources
Also known as GHSA-mr42-h3r5-v8g5.