SB2021022528 - Cross-site scripting in docsify
Published: February 25, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Cross-site scripting (CVE-ID: CVE-2021-23342)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Note, the vulnerability exusts due to incomplete fix for #VU29469.
Remediation
Install update from vendor's website.
References
- http://packetstormsecurity.com/files/161495/docsify-4.11.6-Cross-Site-Scripting.html
- http://seclists.org/fulldisclosure/2021/Feb/71
- https://github.com/docsifyjs/docsify/commit/ff2a66f12752471277fe81a64ad6c4b2c08111fe
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1076593
- https://snyk.io/vuln/SNYK-JS-DOCSIFY-1066017