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STAR_LabsCVELIST:CVE-2023-2317

HistoryAug 19, 2023 - 5:35 a.m.

CVE-2023-2317 Typora DOM-Based Cross-site Scripting leading to Remote Code Execution

2023-08-1905:35:36

CWE-79

STAR_Labs

www.cve.org

cve-2023-2317

typora

dom-based xss

remote code execution

windows

linux

markdown

javascript

vulnerability

exploited

typora main window

CVSS3

8.6

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.8

Confidence

High

EPSS

0.002

Percentile

52.4%

JSON

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.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "platforms": [
      "Windows",
      "Linux"
    ],
    "product": "Typora",
    "vendor": "Typora",
    "versions": [
      {
        "lessThan": "1.6.7",
        "status": "affected",
        "version": "0",
        "versionType": "custom"
      }
    ]
  }
]

References

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

support.typora.io/What's-New-1.6/

CVSS3

8.6

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.8

Confidence

High

EPSS

0.002

Percentile

52.4%

JSON

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