Cross-Site Scripting Vulnerability in wandb OpenUI by Weights and Biases
CVE-2026-4995

5.1MEDIUM

Key Information:

Vendor

Wandb

Status
Openui
Vendor
CVE Published:
28 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-4995?

A cross-site scripting vulnerability exists in wandb OpenUI versions up to 1.0. This flaw is linked to the handling of window message events within the frontend/public/annotator/index.html file. Exploiting this vulnerability allows attackers to inject malicious scripts remotely, potentially compromising the security of users interacting with the affected web application. This security issue has been publicly disclosed, and affected users should apply necessary precautions as the vendor has not responded to the disclosure.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

OpenUI 1.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-4995 - Proof of Concept

References

https://vuldb.com/?id.353882
vdb-entry
https://vuldb.com/?ctiid.353882
signaturepermissions-required
https://vuldb.com/?submit.778267
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Eric-b (VulDB User)
VulDB
JSON
.