CVE-2022-38639 json
Markdown-Nice v1.8.22 vulnerable to Cross-site Scripting
published 2022-09-09 4 y ago modified 2026-06-17 4 mo ago also GHSA-462r-wxvm-jvxh , EUVD-2022-6684
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 43%
- public exploits
- 0
- none known
Summary
A cross-site scripting (XSS) vulnerability in Markdown-Nice v1.8.22 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Community Posting field.
Exploit prediction
0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/mdnice/markdown-nice/issues/327 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | markdown-nice | <=1.8.22 |
no fix listed |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/mdnice/markdown-nice/issues/327
web, exploit, issue-tracking, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2022-38639
advisory
-
github.com
/mdnice/markdown-nice
package
Sources
- CVE List CVE-2022-38639
- GitHub Advisory GHSA-462r-wxvm-jvxh
- NVD CVE-2022-38639
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.