CVE-2026-27605

MEDIUM

6.3

Description

Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to version 4.8.4, the application allows uploading files (project logos) without validating the file type or content. It trusts the extension provided by the user. These files are saved to the uploads/ directory and served statically. An attacker can upload an HTML file containing malicious JavaScript. Since authentication tokens are likely stored in localStorage (as they are returned in the API body), this XSS can lead to account takeover. This issue has been patched in version 4.8.4.

CVE Details

CVSS v3.1 Score6.3

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionREQUIRED

Published3/6/2026

Last Modified3/10/2026

Sourcenvd

Honeypot Sightings0

Affected Products

depomo:chartbrew

Weaknesses (CWE)

CWE-79CWE-434

References

https://github.com/chartbrew/chartbrew/releases/tag/v4.8.4(security-advisories@github.com)

https://github.com/chartbrew/chartbrew/security/advisories/GHSA-jf6m-hm53-c364(security-advisories@github.com)

IOC Correlations

No correlations recorded

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