CVE-2021-23342

Cross-site Scripting (XSS)

High · published February 19, 2021

CVSS v3.1
8.6
EPSS
2%
Percentile
76.4
In the wild
Unconfirmed
What it is

This affects the package docsify before 4.12.0. It is possible to bypass the remediation done by CVE-2020-7680 and execute malicious JavaScript through the following methods 1) When parsing HTML from remote URLs, the HTML code on the main page is sanitized, but this sanitization is not taking place in the sidebar. 2) The isURL external check can be bypassed by inserting more “////” characters

The record
Technical detail
CVSS v3.1
8.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:P/RL:U/RC:C
CVSS v4.0
Not supplied
EPSS
0.01657 · 76.4th percentile
Published
2021-02-19T16:35Z
EPSS history
Timeline
  • 19 FEB 16:35Z
    Cross-site Scripting (XSS)
    cvelistv5