Vulnerability · Published Feb 20, 2026 · Assigned by VulnCheck

CVE-2026-27505SVXportal <= 2.5 admin/user_action.php Stored XSS

Medium 6.1

In plain English

A medium-severity cross-site scripting in SVXportal from sa2blv. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.2%top 87.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

SVXportal version 2.5 and prior contain a stored cross-site scripting vulnerability in the user registration workflow (index.php submitting to admin/user_action.php). User-supplied fields such as Firstname, lastname, and email are stored in the backend database without adequate output encoding and are later rendered in the administrator interface (admin/users.php), allowing an unauthenticated remote attacker to inject arbitrary JavaScript that executes in an administrator's browser upon viewing the affected page.

Affected products (as reported)

Vendor	Product	Versions
sa2blv	SVXportal	0 – through 2.5

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

https://github.com/sa2blv/SVXportal/blob/master/admin/user_action.php product
https://www.vulncheck.com/advisories/svxportal-admin-user-action-php-stored-xss third-party-advisory