CVE-2020-27783
lxml - security update
6.1
MEDIUM
CVSS 3.1
EPSS 1.2%
Description
A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly imitate browsers, which caused different behaviors between the sanitizer and the user's page. A remote attacker could exploit this flaw to run arbitrary HTML/JS code.
How to fix CVE-2020-27783
To remediate CVE-2020-27783, upgrade the affected package to a fixed version below.
- Alpine/py3-lxml—upgrade to 4.6.2-r0 or later
- —upgrade to 4.6.2-1 or later
- —upgrade to 4.3.2-1+deb10u1 or later
- —upgrade to 4.6.2 or later
- —upgrade to 4.6.2 or later
Is CVE-2020-27783 being exploited?
Low — EPSS is 1.2%, meaning exploitation activity has not been observed at scale.
Affected packages (5)
- from 0, < 4.6.2-r0
- from 0, < 4.6.2-1
- from 0, < 4.3.2-1+deb10u1
- from 0, < 4.6.2
- >= 1.2, < 4.6.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N |
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |