CVE-2021-29467 : Wrongthink is an encrypted peer-to-peer chat program. A user could check their fingerprint into the service and enter a

Wrongthink is an encrypted peer-to-peer chat program. A user could check their fingerprint into the service and enter a script to run arbitrary JavaScript on the site. No workarounds exist, but a patch exists in version 2.4.1.

Published 2021-04-22 00:15:08

Updated 2021-04-29 17:23:54

Source GitHub, Inc.

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Exploit prediction scoring system (EPSS) score for CVE-2021-29467

EPSS FAQ

0.11%

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

~ 43 %

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

CVSS scores for CVE-2021-29467

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
6.1	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N	1.8	4.2	GitHub, Inc.
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: Low Availability: None

CWE ids for CVE-2021-29467

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)

CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.

Assigned by: security-advisories@github.com (Secondary)

Products affected by CVE-2021-29467

Wrongthink Project » Wrongthink
Versions before (<) 2.4.1
cpe:2.3:a:wrongthink_project:wrongthink:*:*:*:*:*:*:*:*
Matching versions

Vulnerability Details : CVE-2021-29467

Exploit prediction scoring system (EPSS) score for CVE-2021-29467

CVSS scores for CVE-2021-29467

CWE ids for CVE-2021-29467

References for CVE-2021-29467

Products affected by CVE-2021-29467