CVE-2021-43785 : @joeattardi/emoji-button is a Vanilla JavaScript emoji picker component. In affe

@joeattardi/emoji-button is a Vanilla JavaScript emoji picker component. In affected versions there are two vectors for XSS attacks: a URL for a custom emoji, and an i18n string. In both of these cases, a value can be crafted such that it can insert a `script` tag into the page and execute malicious code.

Published 2021-11-26 19:15:08

Updated 2021-11-30 18:20:01

Source GitHub, Inc.

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2021-43785

Emoji Button Project » Emoji Button » For Node.js
Versions before (<) 4.6.2
cpe:2.3:a:emoji_button_project:emoji_button:*:*:*:*:*:node.js:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-43785

EPSS FAQ

0.38%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 56 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-43785

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
6.1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	2.8	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None
7.6	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L	2.8	4.7	GitHub, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: Low Availability: Low

CWE ids for CVE-2021-43785

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.
Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)

References for CVE-2021-43785

https://github.com/joeattardi/emoji-button/security/advisories/GHSA-f34m-x9pj-62vq

Cross Site Scripting Vulnerability in @joeattardi/emoji-button · Advisory · joeattardi/emoji-button · GitHub
Third Party Advisory
https://github.com/joeattardi/emoji-button/commit/05970c09180cd27fff493e998ac5bf0468b1bb16

Fix XSS vulnerability with custom emojis · joeattardi/emoji-button@05970c0 · GitHub
Patch;Third Party Advisory
https://github.com/joeattardi/emoji-button/commit/fe54bef107eb3f74873a4018f2ff49fa124c6a2e

Add more HTML escaping · joeattardi/emoji-button@fe54bef · GitHub
Patch;Third Party Advisory

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Vulnerability Details : CVE-2021-43785

Products affected by CVE-2021-43785

Exploit prediction scoring system (EPSS) score for CVE-2021-43785

CVSS scores for CVE-2021-43785

CWE ids for CVE-2021-43785

References for CVE-2021-43785