CVE Catalog

CVE-2025-65959

HighCVSS 8.7
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.24%

13th percentile - higher than 13% of all known CVEs

Summary

Open WebUI prior to 0.6.37 contains a Stored XSS vulnerability in its Notes PDF download functionality. An attacker can import a Markdown file containing malicious SVG tags into Notes, allowing execution of arbitrary JavaScript and theft of session tokens when a victim downloads the note as PDF.

Risk Assessment

Any authenticated user can exploit the vulnerability, and unauthenticated external attackers can steal session tokens from both admin and regular users by sharing specially crafted markdown files.

Recommendation

Update Open WebUI to version 0.6.37 or later, which fixes this vulnerability.

Other vulnerabilities in Open WebUI

See all
Original NVD description (English source)

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 Markdown file containing malicious SVG tags into Notes, allowing them to execute arbitrary JavaScript code and steal session tokens when a victim downloads the note as PDF. This vulnerability can be exploited by any authenticated user, and unauthenticated external attackers can steal session tokens from users (both admin and regular users) by sharing specially crafted markdown files. This vulnerability is fixed in 0.6.37.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS