Threat intelligence

Gutenverse <= 3.8.0 - Authenticated (Editor+) Stored Cross-Site Scripting via 'fonts[].font.font.value' Parameter

CVE-2026-12399 · gutenverse

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Gutenverse at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Gutenverse <= 3.8.0 - Authenticated (Editor+) Stored Cross-Site Scripting via 'fonts[].font.font.value' Parameter
Affected software: gutenverse(Plugin)
Affected versions: ≤ 3.8.0
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2026-12399
Published: 26 June 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Source: Data imported from Wordfence Intelligence (advisory fd1c679b-43e0-4e3a-ae2d-f6ff8a657512). Methodology and redistribution notes

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