CVE-2026-27506 SVXportal <= 2.5 Profile Update Stored XSS
Authenticated users can inject malicious scripts into profile fields, leading to JavaScript execution in administrators' browsers.
- 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-2026-27506?
CVE-2026-27506 is a medium-severity cross-site scripting vulnerability in sa2blv SVXportal, published on 20 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
SVXportal version 2.5 and prior contain a stored cross-site scripting vulnerability in the user profile update workflow (user_settings.php submitting to admin/update_user.php). Authenticated users can store malicious HTML/JavaScript in fields such as Firstname, lastname, email, and image_url, which are later rendered without adequate output encoding in the administrator interface (admin/users.php), resulting in JavaScript execution in an administrator's browser when the affected page is viewed.
Weakness: CWE-79
Which versions are affected by CVE-2026-27506?
It affects 1 product.
Products include Radioinorr Svxportal.
How do I fix CVE-2026-27506?
No fix has been published for CVE-2026-27506 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-2026-27506 being exploited?
There is no known exploitation of CVE-2026-27506 in the wild and no public exploit code.
Other vulnerabilities in sa2blv SVXportal
Sources
Also known as GHSA-62hw-x3qq-c7vv.