Products
ZenUML
- 3.23.25 and below
Source
security-advisories@github.com
Tags
CVE-2024-38527 details
Last Modified : June 26, 2024, 8:15 p.m.
Description
ZenUML is JavaScript-based diagramming tool that requires no server, using Markdown-inspired text definitions and a renderer to create and modify sequence diagrams. Markdown-based comments in the ZenUML diagram syntax are susceptible to Cross-site Scripting (XSS). The comment feature allows the user to attach small notes for reference. This feature allows the user to enter in their comment in markdown comment, allowing them to use common markdown features, such as `**` for bolded text. However, the markdown text is currently not sanitized before rendering, allowing an attacker to enter a malicious payload for the comment which leads to XSS. This puts existing applications that use ZenUML unsandboxed at risk of arbitrary JavaScript execution when rendering user-controlled diagrams. This vulnerability was patched in version 3.23.25,
CVSS Score
| 1 | 2 | 3 | 4 | 5.4 | 6 | 7 | 8 | 9 | 10 |
|---|
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
HIGH
Privileges Required
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Base Score
5.4
Exploitability Score
2.2
Impact Score
2.7
Base Severity
MEDIUM
Vector String : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
References
| URL | Source |
|---|---|
| https://github.com/mermaid-js/zenuml-core/commit/ad7545b33f5f27466cbf357beb65969ca1953e3c | security-advisories@github.com |
| https://github.com/mermaid-js/zenuml-core/security/advisories/GHSA-q6xv-jm4v-349h | security-advisories@github.com |