CVE-2021-30074 json
Docsify vulnerable to cross-site scripting due to mishandled encoding
published 2021-04-02 5 y ago modified 2026-06-17 4 mo ago also GHSA-5h7x-68wj-jhwc , EUVD-2022-2591
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
docsify 4.12.1 is affected by Cross Site Scripting (XSS) because the search component does not appropriately encode Code Blocks and mishandles the " character.
Patch / fix
- npm docsify 4.12.2
- github.com/docsifyjs/docsify@c24f7f6 commit
- github.com/docsifyjs/docsify#1551 pull request
Exploit prediction
0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/docsifyjs/docsify/issues/1549 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | docsify | <4.12.2 |
4.12.2 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/docsifyjs/docsify/pull/1551
web
-
github.com
/docsifyjs/docsify/commit/c24f7f6f0b87a87f6dd3755f69eb0969ebb029c9
web
-
github.com
/docsifyjs/docsify/issues/1549
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-30074
advisory
-
github.com
/docsifyjs/docsify
package
Sources
- CVE List CVE-2021-30074
- GitHub Advisory GHSA-5h7x-68wj-jhwc
- NVD CVE-2021-30074
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.