CVE-2020-4070

In CSS Validator less than or equal to commit 54d68a1, there is a cross-site scripting vulnerability in handling URIs. A user would have to click on a specifically crafted validator link to trigger it. This has been patched in commit e5c09a9.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.6 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
GitHub_MCNA
4.6 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 56%
VendorProductVersion
w3ccss_validator
𝑥
≤ 2020-01-19
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/w3c/css-validator/commit/e5c09a9119167d3064db786d5f00d730b584a53b
https://github.com/w3c/css-validator/security/advisories/GHSA-wf36-7w73-rh8c
https://github.com/w3c/css-validator/commit/e5c09a9119167d3064db786d5f00d730b584a53b
https://github.com/w3c/css-validator/security/advisories/GHSA-wf36-7w73-rh8c