CVE-2026-45665 Details
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, a Stored Cross-Site Scripting (XSS) vulnerability exists in the Banner component due to an improper sanitization order (specifically, DOMPurify is executed before the marked library). This vulnerability allows a compromised or malicious administrator to plant a malicious payload in the global banner. Crucially, this vector enables Privilege Escalation, as the malicious banner is rendered for all users, including the Super Admin (Primary Admin). Consequently, the payload successfully bypasses the existing security mechanism. An attacker can leverage this to steal the Super Admin's session token This vulnerability is fixed in 0.8.0.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-45665
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.32 Probability of exploitation activity being observed over the next 30 days (24th percentile)
CVSS score for CVE-2026-45665
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
8.1 High
Products affected by CVE-2026-45665
Open Webui 0.6.28
Open Webui 0.6.30
Open Webui 0.6.32
Open Webui 0.6.33
Open Webui 0.6.34
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2026-45665 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 1,165 25.24%
CN 687 14.88%
DE 678 14.69%
FR 178 3.86%
SG 172 3.73%
RU 143 3.10%
GB 141 3.05%
KR 136 2.95%
JP 103 2.23%
NL 97 2.10%

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CVE-2026-45665 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 2,791 83.71%
Telecommunications 397 11.91%
Education 74 2.22%
Government/Politics 12 0.36%
Retail 11 0.33%
Utilities 10 0.30%
Business Services 9 0.27%
Consumer Goods 8 0.24%
Media/Entertainment 8 0.24%
Finance 3 0.09%

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