Medium

Docsify XSS Vulnerability

  • Disclosed: 01.03.2021
  • Updated: 11.10.2026 10:22

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

Affected software

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PlatformPackageVulnerable versionsFixed in
npm package docsify < 4.12.0 4.12.0

References

CVSS score 6.1/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79
Platform
npm
Package
docsify
Disclosed
01.03.2021
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-2mm9-c2fx-c7m4 - CC BY 4.0

Vulnerability history: docsify

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
3
First → latest
03.2021 05.2022
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Medium 3

Disclosures per year

  1. 2021: 2
  2. 2022: 1
  3. 2023: 0
  4. 2024: 0
  5. 2025: 0
  6. 2026: 0
  1. Medium · 6.1 CVE-2021-30074 < 4.12.2 4.12.2
  2. Medium · 6.1 CVE-2020-7680 < 4.11.4 4.11.4
  3. Docsify XSS Vulnerability this entry
    Medium · 6.1 CVE-2021-23342 < 4.12.0 4.12.0

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