CVE-2026-5790

Stored Cross-Site Scripting (XSS) vulnerability in Stel Order

MEDIUM
5.1
CVSS Score
Published: May 14, 2026 at 12:30 PM UTC
Updated: June 17, 2026 at 10:59 AM UTC
1 product affected across 1 vendorStel Order

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Severity
MEDIUM5.1
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Stored Cross-Site Scripting (XSS) in Stel Order v3.25.1 and earlier, located at the ‘/app/FrontController’ endpoint via the ‘legalName’ and ‘employeeID’ parameters. The lack of proper input sanitization allows an attacker to inject malicious code that is persistently stored in the database. When other users or administrators access the affected sections, the code executes in their browsers, enabling the theft of session cookies and account hijacking.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.1MEDIUMINCIBE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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