CVE-2026-34417 (GCVE-0-2026-34417)
Vulnerability from cvelistv5 – Published: 2026-06-09 21:02 – Updated: 2026-07-14 18:40 X_Open Source Unsupported When Assigned
VLAI
EPSS
VEX
Title
OSCAL-GUI Reflected XSS via project parameter in oscal-forms.php
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 14:23 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://gist.github.com/cyberinforepo/5a8d369a005… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/oscal-gui-re… | third-party-advisory |
Impacted products
Date Public
2026-06-04 00:00
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