PT-2026-48280 · Brian Ruf · Oscal-Gui

Philopentest + 1 · Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-34417

NVD

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-34417

Affected Products

Oscal-Gui

References · 3

• 🔥 https://gist.github.com/cyberinforepo/5a8d369a005826b6b42bfeed9607c2dd · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-34417 · Security Note
• https://vulncheck.com/advisories/oscal-gui-reflected-xss-via-project-parameter-in-oscal-forms-php · Note