What is CVE-2025-65959?

CVE-2025-65959 is a high-severity vulnerability in Open-webui, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2025-12-04.

How severe is CVE-2025-65959?

High severity. CVSS v3 base score is 8.7 out of 10.

XSS in Open-webui

CVE-2025-65959

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.6.37, a Stored XSS vulnerability was discovered in Open-WebUI's Notes PDF download functionality. An attacker can import a Markdo…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (10.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

Affected products

Open-webui — versions < 0.6.37
Openwebui Open_webui

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2025-65959?: CVE-2025-65959 is a high-severity vulnerability in Open-webui, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2025-12-04.
How severe is CVE-2025-65959?: High severity. CVSS v3 base score is 8.7 out of 10.