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Vulnerabilities CVE-2026-34416

CVE-2026-34416

Medium
Open
TLP:CLEAR

OSCAL-GUI Reflected XSS via project parameter in oscal.php

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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.

Details

CVSS Score
5.1
EPSS Score
0.20%

9.9th percentile

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
Confidence
90%
Published
Jun 9, 2026
Last Modified
Jul 14, 2026
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