CVEvulnerability
CVE-2026-109288
7.2 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-10-12
- Last modified
- 2026-10-13
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 7.2 HIGH — CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 6.4 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-79
Description
Open WebUI before 0.11.4 contains a stored cross-site scripting vulnerability in MarkdownInlineTokens.svelte, which renders markdown link URLs into anchor hrefs without validating their scheme. Authenticated users can embed javascript: links in shared chats that, when clicked by a victim, steal the victim's JWT from local storage, including admins' tokens.
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://github.com/open-webui/open-webui/security/advisories/GHSA-wf9m-46cp-c6h6 github.com
- https://www.vulncheck.com/advisories/open-webui-before-0.11.4-stored-xss-via-javascript-urls-in-markdown-links www.vulncheck.com
- https://github.com/open-webui/open-webui/security/advisories/GHSA-wf9m-46cp-c6h6 github.com