CVE-2020-28459 json
Cross-site Scripting (XSS)
published 2022-07-19 4 y ago modified 2026-06-17 4 mo ago also GHSA-rhf5-2378-3w3w , EUVD-2022-6409
- cvss
- 7.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
Summary
This affects all versions of package markdown-it-decorate. An attacker can add an event handler or use javascript:xxx for the link.
Patch / fix
Exploit prediction
0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- security.snyk.io https://security.snyk.io/vuln/SNYK-JS-MARKDOWNITDECORATE-1044068 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:C |
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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 | markdown-it-decorate | <=1.2.2 |
no fix listed |
Affected products
- n/a markdown-it-decorate
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/rstacruz/markdown-it-decorate/commit/a6b33ce79e9b8cddf6184c754713e6af65253909
web
-
security.snyk.io
/vuln/SNYK-JS-MARKDOWNITDECORATE-1044068
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-28459
advisory
-
github.com
/rstacruz/markdown-it-decorate
package
Sources
- CVE List CVE-2020-28459
- GitHub Advisory GHSA-rhf5-2378-3w3w
- NVD CVE-2020-28459
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.