Products
Joplin
- 2.12.9
Source
security-advisories@github.com
Tags
CVE-2023-37898 details
Last Modified : June 21, 2024, 8:15 p.m.
Description
Joplin is a free, open source note taking and to-do application. A Cross-site Scripting (XSS) vulnerability allows an untrusted note opened in safe mode to execute arbitrary code. `packages/renderer/MarkupToHtml.ts` renders note content in safe mode by surrounding it with <pre> and </pre>, without escaping any interior HTML tags. Thus, an attacker can create a note that closes the opening <pre> tag, then includes HTML that runs JavaScript. Because the rendered markdown iframe has the same origin as the toplevel document and is not sandboxed, any scripts running in the preview iframe can access the top variable and, thus, access the toplevel NodeJS `require` function. `require` can then be used to import modules like fs or child_process and run arbitrary commands. This issue has been addressed in version 2.12.9 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS Score
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8.2 | 9 | 10 |
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Weakness
Weakness | Name | Description |
---|---|---|
CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | 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. |
CVSS Data
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
LOW
Base Score
8.2
Exploitability Score
2.3
Impact Score
5.3
Base Severity
HIGH
Vector String : CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L
References
URL | Source |
---|---|
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#sandbox | security-advisories@github.com |
https://github.com/laurent22/joplin/security/advisories/GHSA-hjmq-3qh4-g2r8 | security-advisories@github.com |