Is CVE-2026-27503 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-27503 being exploited in the wild.

How severe is CVE-2026-27503?

Medium severity, with a CVSS score of 6.1, published 20 February 2026.

Is there a fix for CVE-2026-27503?

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-2026-27503 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-27503?

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.

CVE-2026-27503: sa2blv SVXportal reflected XSS in admin/log.php

CVE-2026-27503 · Severity: medium · CVSS 6.1 · Published 2026-02-20

SVXportal, a web portal for managing radio nodes, contains a security flaw in its administrative logging page. If an administrator clicks on a specially crafted link, an attacker can execute malicious code within their browser. This could allow the attacker to steal the administrator's session, perform unauthorized actions, or compromise the management interface.

Technologies: Radioinorr Svxportal. Vendors: Radioinorr.

Quick answers

Is CVE-2026-27503 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-27503 being exploited in the wild.
How severe is CVE-2026-27503?: Medium severity, with a CVSS score of 6.1, published 20 February 2026.
Which products and versions are affected?: sa2blv SVXportal <= 2.5.
Is there a fix for CVE-2026-27503?: 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-2026-27503 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-27503?: 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 reflected cross-site scripting (XSS) vulnerability exists in SVXportal versions 2.5 and earlier within the 'admin/log.php' component. The vulnerability is triggered via the 'search' query parameter, which is improperly neutralized before being rendered into an HTML input value attribute. An attacker can exploit this by tricking an authenticated administrator into visiting a malicious URL. Successful exploitation allows the execution of arbitrary JavaScript in the context of the victim's session, potentially leading to session hijacking or administrative action forgery. The issue is tracked as CWE-79.

Affected products

sa2blv SVXportal <= 2.5

Timeline

2026-02-20: advisory: Initial advisory published by VulnCheck
2026-02-20: disclosed: CVE-2026-27503 assigned

References

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