# CVE-2026-27506: sa2blv SVXportal stored XSS in user profile update

Source: https://junglewise.ai/threats/cve-2026-27506-sa2blv-svxportal-stored-xss-in-user-profile-update  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-02-20. Updated: 2026-07-14  
License: CC BY 4.0 with a link back

CVE-2026-27506 · Severity: medium · CVSS 6.1 · Published 2026-02-20

SVXportal, a web portal for managing radio nodes, contains a security flaw in its user profile update system. An attacker with a standard user account can save malicious code into their profile fields, such as their name or email address. If a system administrator later views the list of users, this code will run in their browser, potentially allowing the attacker to hijack the administrator's session or perform unauthorized actions.

Technologies: [Radioinorr Svxportal](https://junglewise.ai/threats/technologies/svxportal). Vendors: [Radioinorr](https://junglewise.ai/threats/vendors/radioinorr).

## Quick answers

**Is CVE-2026-27506 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-27506 being exploited in the wild.

**How severe is CVE-2026-27506?** Medium severity, with a CVSS score of 6.1, published 20 February 2026.

**Which products and versions are affected?** sa2blv SVXportal 2.5 and prior.

**Is there a fix for CVE-2026-27506?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-27506 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-27506?** Check whether you run Radioinorr Svxportal. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A stored cross-site scripting (XSS) vulnerability exists in SVXportal version 2.5 and prior within the user_settings.php component. The application fails to adequately sanitize or encode user-supplied input in fields such as 'Firstname', 'lastname', 'email', and 'image_url' before storing them via admin/update_user.php. When an administrator views the user management interface (admin/users.php), the stored malicious JavaScript is rendered and executed in the context of the administrator's session. This allows for potential session hijacking or unauthorized administrative actions. The vulnerability requires basic user authentication to exploit.

## Affected products

- sa2blv SVXportal 2.5 and prior

## Timeline

- 2026-02-20: disclosed: Initial disclosure by VulnCheck
- 2026-02-20: advisory: NVD published the CVE entry

## References

- [https://github.com/sa2blv/SVXportal/blob/master/admin/update_user.php](https://github.com/sa2blv/SVXportal/blob/master/admin/update_user.php)
- [https://www.vulncheck.com/advisories/svxportal-admin-update-user-php-stored-xss](https://www.vulncheck.com/advisories/svxportal-admin-update-user-php-stored-xss)

## Related threats

- [sa2blv SVXportal stored XSS in user registration workflow](https://junglewise.ai/threats/cve-2026-27505-sa2blv-svxportal-stored-xss-in-user-registration-workflow)
- [sa2blv SVXportal reflected XSS in radiomobile_front.php](https://junglewise.ai/threats/cve-2026-27504-sa2blv-svxportal-reflected-xss-in-radiomobile-front-php)
- [sa2blv SVXportal reflected XSS in admin/log.php](https://junglewise.ai/threats/cve-2026-27503-sa2blv-svxportal-reflected-xss-in-admin-log-php)
- [sa2blv SVXportal reflected XSS in log.php](https://junglewise.ai/threats/cve-2026-27502-sa2blv-svxportal-reflected-xss-in-log-php)