EUVD-2026-16917CVSS 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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Description
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.
Analysis
Stored cross-site scripting (XSS) in wandb OpenUI up to version 1.0 via the Window Message Event Handler in frontend/public/annotator/index.html allows authenticated remote attackers to inject malicious scripts with user interaction. The vulnerability has a low CVSS score (3.5) due to authentication and user-interaction requirements, but publicly available exploit code exists and the vendor has not responded to early disclosure notifications.
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Remediation
Within 30 days: Identify affected systems running wandb OpenUI and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.
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External POC / Exploit Code
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