CVE-2026-34416 MEDIUM

CVE-2026-34416: OSCAL-GUI Reflected XSS via project parameter in oscal.php

Vendor Brian-Ruf
Product OSCAL-GUI
Weakness CWE-79 · XSS
Published June 9, 2026
Last update June 10, 2026

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

Description

OSCAL-GUI contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to execute arbitrary JavaScript in a victim's browser by injecting malicious input through the project request parameter. Attackers can craft a malicious URL containing unsanitized input that breaks out of the JavaScript string and HTML attribute context in the body onload event handler to execute arbitrary scripts when the link is visited by a victim.

Key dates

Disclosure timeline

June 9, 2026 CVE published
June 10, 2026 Record updated