Vulnerability · Published Oct 14, 2026 · Assigned by GitHub_M

CVE-2026-69194FileRise: Unsanitized footerHtml in Public Site Config

Medium 4.8

In plain English

A medium-severity cross-site scripting in FileRise from error311. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)4.8Medium

Exploit odds (30 days)0.2%top 86.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
error311	FileRise	< 3.21.0

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

References

https://github.com/error311/FileRise/security/advisories/GHSA-rmwm-wq9g-583g x_refsource_CONFIRM
https://github.com/error311/FileRise/commit/613fdb28ca25e6dcc9bdfa590757b53935fad8da x_refsource_MISC
https://github.com/error311/FileRise/releases/tag/v3.21.0 x_refsource_MISC