CVE-2021-4172
Cross-site Scripting in showdoc
5.4
MEDIUM
CVSS 3.1
EPSS 0.19%
Description
Stored XSS via upload attachment with format .svg in File Library.
How to fix CVE-2021-4172
To remediate CVE-2021-4172, upgrade the affected package to a fixed version below.
- Packagist/showdoc/showdoc—upgrade to 2.10.2 or later
Is CVE-2021-4172 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.10.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |