7.6

CVE-2025-52902: filebrowser Cross-site Scripting

CVSS: 7.6v3.1HighAnalyzed
AliasesGHSA-4wx8-5gm2-2j97GO-2025-3784
Published 26-06-2025Last modified 26-06-2025
Open JSON

Vulnerability summary

CVE-2025-52902 is a high (CVSS 7.6) Cross-site Scripting vulnerability in filebrowser. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 24.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.6/10
010
High · v3.1 (CVE.org)
EPSS score
0.33%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2025:15405-1

Timeline

  1. 26-06-2025
    PublishedVulnerability first disclosed.
  2. 26-06-2025
    Last modifiedVulnerability information updated.

Description

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. The Markdown preview function of File Browser prior to v2.33.7 is vulnerable to Stored Cross-Site-Scripting (XSS). Any JavaScript code that is part of a Markdown file uploaded by a user will be executed by the browser. Version 2.33.7 contains a fix for the issue.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

24%

Versus all other CVEs

30-day change

+0.02 pp

From 0.30% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.33%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Filebrowser

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Filebrowser1 product
Github.com/filebrowser1 product
  • filebrowser≤ 1.11.0 | All versions (No fix recorded)
Github.com/filebrowser/filebrowser1 product
  • v2< 2.33.7

3 vendors · 3 products

References

6 links