CVE-2023-2317

CRITICAL EPSS 79.9%

Published Aug 19, 20232y ago · Modified Jun 17, 20262w ago

9.6 CVSS 3.1

Critical

Published Aug 19, 2023 2y ago

Last Modified Jun 17, 2026 2w ago

Description

DOM-based XSS in updater/update.html in Typora before 1.6.7 on Windows and Linux allows a crafted markdown file to run arbitrary JavaScript code in the context of Typora main window via loading typora://app/typemark/updater/update.html in <embed> tag. This vulnerability can be exploited if a user opens a malicious markdown file in Typora, or copies text from a malicious webpage and paste it into Typora.

CVSS Details

Base Score

9.6

Exploitability

2.8

Impact

6.0

Vector string

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

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Changed

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

79.9% percentile

Exploit & Patch Status

Public Exploit Known

No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 3

Vendor	Product	Version	Range
typora	typora	*	<1.6.7
linux	linux_kernel	*	any
microsoft	windows	*	any

References 2

starlabs.sg https://starlabs.sg/advisories/23/23-2317/

ExploitMitigationThird Party Advisory
support.typora.io https://support.typora.io/What's-New-1.6/

Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.