CVE-2026-4995 MEDIUM

CVE-2026-4995: wandb OpenUI Window Message Event index.html cross site scripting

Vendor Wandb
Product OpenUI
Weakness CWE-79 · XSS
Published March 28, 2026
Last update April 1, 2026

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was determined in wandb OpenUI up to 1.0. Affected by this vulnerability is an unknown functionality of the file frontend/public/annotator/index.html of the component Window Message Event Handler. This manipulation causes cross site scripting. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Key dates

02Disclosure timeline

March 28, 2026 CVE published
April 1, 2026 Record updated