What is CVE-2025-54789?

CVE-2025-54789 is a medium-severity vulnerability in Humhub Cfiles, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.1/10. Published 2025-08-02.

How severe is CVE-2025-54789?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Humhub Cfiles

CVE-2025-54789

Files is a module for managing files inside spaces and user profiles. In versions 0.16.9 and below, the File Move functionality does not contain logic that prevents injection of arbitrary JavaScript, which can lead to Browser JS code execution in the context of the user’s session. This is fixed in version 0.16.10.

Published 2025-08-02 · last modified 2026-09-02.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (16.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 16.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Humhub Cfiles — versions < 0.6.10
Humhub Files

Weakness classification (CWE)

CWE-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

References

github.com/humhub/cfiles/security/advisories/GHSA-cw2v-c62w-5r43 (Vendor Advisory)
github.com/humhub/cfiles/commit/f022bdd1cc54334a7a2a6f90a8168bb9583a2f00 (Patch)
github.com/humhub/cfiles/releases/tag/v0.16.10 (Release Notes)

Frequently asked questions

What is CVE-2025-54789?: CVE-2025-54789 is a medium-severity vulnerability in Humhub Cfiles, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.1/10. Published 2025-08-02.
How severe is CVE-2025-54789?: Medium severity. CVSS v3 base score is 6.1 out of 10.