CVE-2021-3163 Information

Description

DISPUTED A vulnerability in the HTML editor of Slab Quill 4.8.0 allows an attacker to execute arbitrary JavaScript by storing an XSS payload (a crafted onloadstart attribute of an IMG element) in a text field. Note: Researchers have claimed that this issue is not within the product itself but is intended behavior in a web browser.

CVSS Vector

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

Reference

https://quilljs.com https://burninatorsec.blogspot.com/2021/04/cve-2021-3163-xss-slab-quill-js.html https://github.com/quilljs/quill/issues/3273 https://github.com/quilljs/quill/issues/3364

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.1