XSS in Radioinorr Svxportal
CVE-2026-27506
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (20.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Radioinorr Svxportal
- Sa2blv Svxportal — versions 0
Weakness classification (CWE)
References
- github.com/sa2blv/SVXportal/blob/master/admin/update_user.php (Product, product)
- www.vulncheck.com/advisories/svxportal-admin-update-user-php-stored-xss (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-27506?
- CVE-2026-27506 is a medium-severity vulnerability in Radioinorr Svxportal, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-02-20.
- How severe is CVE-2026-27506?
- Medium severity. CVSS v3 base score is 6.1 out of 10.