CVE-2020-6816
python-bleach - security update
6.1
MEDIUM
CVSS 3.1
EPSS 0.42%
Description
In Mozilla Bleach before 3.12, a mutation XSS in bleach.clean when RCDATA and either svg or math tags are whitelisted and the keyword argument strip=False.
How to fix CVE-2020-6816
To remediate CVE-2020-6816, upgrade the affected package to a fixed version below.
- Debian/python-bleach—upgrade to 3.1.3-1 or later
- Debian/python-bleach—upgrade to 3.1.2-0+deb10u1 or later
- —upgrade to 3.1.2 or later
- —upgrade to 3.1.2 or later
Is CVE-2020-6816 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 3.1.3-1
- from 0, < 3.1.2-0+deb10u1
- from 0, < 3.1.2
- from 0, < 3.1.2
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 |