CVE-2026-34417

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 content through the project request parameter in oscal-forms.php. The parameter value is URL-decoded and assigned to the project_id variable without sanitization in oscal-functions.php, and when the supplied project ID is not found, the unsanitized value is concatenated into an error message via the Messages() function and reflected into the HTML response body without encoding.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://gist.github.com/cyberinforepo/5a8d369a005826b6b42bfeed9607c2dd
https://www.vulncheck.com/advisories/oscal-gui-reflected-xss-via-project-parameter-in-oscal-forms-php

Configurations

No configuration.

History

No history.

Information

Published : 2026-06-09 22:16

Updated : 2026-07-23 09:10

NVD link : CVE-2026-34417

Mitre link : CVE-2026-34417

CVE.ORG link : CVE-2026-34417

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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