CVE-2025-26210

high

Description

DeepSeek R1 through V3.1 allows XSS, as demonstrated by JavaScript execution in the context of the run-html-chat.deepseeksvc.com domain. NOTE: some third parties have indicated that this is intended behavior.

References

https://youtu.be/IgQwy52FVT4

https://hackmd.io/@MrqrFIlhQFi7vUwkqbrXDw/deepseek

https://deepseek.com

Details

Source: Mitre, NVD

Published: 2025-09-03

Updated: 2025-09-08

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.0022

Detections

Analytics