CVE-2020-7680

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-07-20 · updated 2026-06-17
Weakness: CWE-79

Description

docsify prior to 4.11.4 is susceptible to Cross-site Scripting (XSS). Docsify.js uses fragment identifiers (parameters after # sign) to load resources from server-side .md files. Due to lack of validation here, it is possible to provide external URLs after the /#/ (domain.com/#//attacker.com) and render arbitrary JavaScript/HTML inside docsify page.

Affected products

docsify: before 4.11.4 — fixed in 4.11.4

How to fix

Upgrade to a fixed version: docsify 4.11.4. Check the vendor advisory for mitigations.

References

http://packetstormsecurity.com/files/158515/Docsify.js-4.11.4-Cross-Site-Scripting.html
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/issues/1126
https://github.com/docsifyjs/docsify/pull/1128
https://snyk.io/vuln/SNYK-JS-DOCSIFY-567099
http://packetstormsecurity.com/files/158515/Docsify.js-4.11.4-Cross-Site-Scripting.html
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/issues/1126
https://github.com/docsifyjs/docsify/pull/1128
https://snyk.io/vuln/SNYK-JS-DOCSIFY-567099

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