PYSEC-2026-1736

See a problem?
Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/open-webui/PYSEC-2026-1736.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-1736
Aliases
Published
2026-07-07T14:34:54.273440Z
Modified
2026-07-07T17:47:59.979620449Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N CVSS Calculator
Summary
Open WebUI Vulnerable to Cross-Site Scripting (XSS) via Chat File Upload
Details

A Stored Cross-Site Scripting (XSS) vulnerability exists in the chat file upload functionality of open-webui/open-webui version 0.3.8. An attacker can inject malicious content into a file, which, when accessed by a victim through a URL or shared chat, executes JavaScript in the victim's browser. This can lead to user data theft, session hijacking, malware distribution, and phishing attacks.

References

Affected packages

PyPI / open-webui

Package

Name
open-webui
View open source insights on deps.dev
Purl
pkg:pypi/open-webui

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Last affected
0.3.8

Affected versions

0.*
0.1.124
0.1.125
0.2.0
0.2.1
0.2.2
0.2.3
0.2.4
0.2.5
0.3.0
0.3.1
0.3.2
0.3.3
0.3.4
0.3.5
0.3.6
0.3.7
0.3.8

Database specific

source 
"https://github.com/pypa/advisory-database/blob/main/vulns/open-webui/PYSEC-2026-1736.yaml"