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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.

PUBLISHED Reserved 2026-03-27 | Published 2026-06-09 | Updated 2026-06-10 | Assigner VulnCheck




MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

MEDIUM: 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Problem types

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

Product status

Default status
affected

Any version
affected

Credits

philopentest finder

VulnCheck finder

References

gist.github.com/...inforepo/5a8d369a005826b6b42bfeed9607c2dd technical-description exploit

www.vulncheck.com/...-xss-via-project-parameter-in-oscal-php third-party-advisory

cve.org (CVE-2026-34416)

nvd.nist.gov (CVE-2026-34416)

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