CVE-2025-62421

Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-10-17

Last updated on: 2025-10-24

Assigner: GitHub, Inc.

Description

DataEase is a data visualization and analytics platform. In DataEase versions through 2.10.13, a stored cross-site scripting vulnerability exists due to improper file upload validation and authentication bypass. The StaticResourceApi interface defines a route upload/{fileId} that uses a URL path parameter where both the filename and extension of uploaded files are controllable by users. During permission validation, the TokenFilter invokes the WhitelistUtils#match method to determine if the URL path is in the allowlist. If the requestURI ends with .js or similar extensions, it is directly deemed safe and bypasses permission checks. This allows an attacker to access "upload/1.js" while specifying arbitrary file extensions, enabling the upload of HTML files containing malicious JavaScript. The vulnerability is fixed in version 2.10.14. No known workarounds exist.

CVSS Scores

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Meta Information

Published

2025-10-17

Last Modified

2025-10-24

Generated

2026-07-07

AI Q&A

2025-10-17

EPSS Evaluated

2026-07-05

NVD

CVE-2025-62421

EUVD

EUVD-2025-34916

Affected Vendors & Products

Vendor	Product	Version / Range
dataease	dataease	to 2.10.14 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability is a stored cross-site scripting (XSS) issue in DataEase versions up to 2.10.13. It occurs because the application improperly validates file uploads and bypasses authentication checks for certain file extensions like .js. Attackers can upload malicious HTML files containing JavaScript by exploiting the upload/{fileId} route, which trusts files ending with .js or similar extensions without proper permission validation. This allows execution of malicious scripts when the uploaded files are accessed.

Impact Analysis

This vulnerability can allow attackers to execute malicious JavaScript in the context of the affected application, potentially leading to unauthorized actions, data theft, session hijacking, or other malicious activities. Since the vulnerability involves stored XSS, the malicious script can persist and affect multiple users who access the compromised files.

Mitigation Strategies

Upgrade DataEase to version 2.10.14 or later, as this version contains the fix for the vulnerability. No known workarounds exist, so applying the update is the immediate mitigation step.

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