Typora up to 1.6.6 on Windows/Linux Markdown File updater/update.html cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Typora up to 1.6.6 on Windows/Linux. The impacted element is an unknown function of the file updater/update.html of the component Markdown File Handler. The manipulation results in cross site scripting. This vulnerability is reported as CVE-2023-2317. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Typora up to 1.6.6 on Windows/Linux. It has been classified as problematic. Affected is an unknown function of the file updater/update.html of the component Markdown File Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

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 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.

The weakness was disclosed 08/19/2023. The advisory is shared for download at starlabs.sg. This vulnerability is traded as CVE-2023-2317 since 04/27/2023. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

By approaching the search of inurl:updater/update.html it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.6.7 eliminates this vulnerability.

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.6
NVD Vector: 🔍

CNA Base Score: 8.6
CNA Vector (STAR Labs SG Pte. Ltd.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Typora 1.6.7

Timelineinfo

04/27/2023 🔍
08/19/2023 +114 days 🔍
08/19/2023 +0 days 🔍
09/13/2023 +25 days 🔍

Sourcesinfo

Advisory: starlabs.sg
Status: Confirmed

CVE: CVE-2023-2317 (🔍)
GCVE (CVE): GCVE-0-2023-2317
GCVE (VulDB): GCVE-100-237552

Entryinfo

Created: 08/19/2023 14:16
Updated: 09/13/2023 17:33
Changes: 08/19/2023 14:16 (51), 09/13/2023 17:33 (11)
Complete: 🔍
Cache ID: 216::103

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