XSS in Error311 Filerise
CVE-2026-69194
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.21.0, FileRise returns the stored branding.footerHtml value through the unauthenticated public site configuration API without server-side sanitization. The FileRise frontend already sanitizes this value before rendering it into the page, using an allowlist of simple footer tags and safe link handling. The unauthenticated public config API exposed raw admin-provided footer HTML to clients, which is still undesirable and could be unsafe for alternate clients or future render paths. An administrator must first store the malicious footer value. This issue is fixed in version 3.21.0.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Error311 Filerise — versions < 3.21.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-69194?
- CVE-2026-69194 is a medium-severity vulnerability in Error311 Filerise, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-10-14.
- How severe is CVE-2026-69194?
- Medium severity. CVSS v3 base score is 4.8 out of 10.