6.1
MEDIUM CVSS 3.1
CVE-2021-3163
Slab Quill XSS Vulnerability
Description

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

INFO

Published Date :

April 12, 2021, 9:15 p.m.

Last Modified :

Nov. 21, 2024, 6:21 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2021-3163 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Slab quill
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-3163.

URL Resource
https://burninatorsec.blogspot.com/2021/04/cve-2021-3163-xss-slab-quill-js.html Exploit Third Party Advisory
https://github.com/quilljs/quill/issues/3273 Broken Link Issue Tracking Third Party Advisory
https://github.com/quilljs/quill/issues/3364 Exploit Issue Tracking Third Party Advisory
https://quilljs.com Product
https://burninatorsec.blogspot.com/2021/04/cve-2021-3163-xss-slab-quill-js.html Exploit Third Party Advisory
https://github.com/quilljs/quill/issues/3273 Broken Link Issue Tracking Third Party Advisory
https://github.com/quilljs/quill/issues/3364 Exploit Issue Tracking Third Party Advisory
https://quilljs.com Product
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-3163 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-3163 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-3163 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2021-3163 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://burninatorsec.blogspot.com/2021/04/cve-2021-3163-xss-slab-quill-js.html
    Added Reference https://github.com/quilljs/quill/issues/3273
    Added Reference https://github.com/quilljs/quill/issues/3364
    Added Reference https://quilljs.com
  • CVE Modified by [email protected]

    Aug. 03, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Jul. 19, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 17, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Apr. 11, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Mar. 21, 2024

    Action Type Old Value New Value
    Added Tag MITRE disputed
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Changed 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. 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
  • Modified Analysis by [email protected]

    Nov. 06, 2021

    Action Type Old Value New Value
    Changed Reference Type https://github.com/quilljs/quill/issues/3364 No Types Assigned https://github.com/quilljs/quill/issues/3364 Exploit, Issue Tracking, Third Party Advisory
  • CVE Modified by [email protected]

    Oct. 25, 2021

    Action Type Old Value New Value
    Changed Description 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. ** 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.
  • CVE Modified by [email protected]

    Jul. 30, 2021

    Action Type Old Value New Value
    Added Reference https://github.com/quilljs/quill/issues/3364 [No Types Assigned]
  • Initial Analysis by [email protected]

    Apr. 21, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type https://burninatorsec.blogspot.com/2021/04/cve-2021-3163-xss-slab-quill-js.html No Types Assigned https://burninatorsec.blogspot.com/2021/04/cve-2021-3163-xss-slab-quill-js.html Exploit, Third Party Advisory
    Changed Reference Type https://github.com/quilljs/quill/issues/3273 No Types Assigned https://github.com/quilljs/quill/issues/3273 Broken Link, Issue Tracking, Third Party Advisory
    Changed Reference Type https://quilljs.com No Types Assigned https://quilljs.com Product
    Added CWE NIST CWE-79
    Added CPE Configuration OR *cpe:2.3:a:slab:quill:4.8.0:*:*:*:*:node.js:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.1
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 4.3
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.50 }} 0.00%

score

0.64462

percentile