CVE-2020-6816

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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
mozillaCNA
---
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 61%
VendorProductVersion
mozillableach
𝑥
< 3.1.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
python-bleach
bullseye
3.2.1-2.1
fixed
stretch
ignored
jessie
ignored
bookworm
5.0.1-2
fixed
sid
6.2.0-1
fixed
trixie
6.2.0-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
python-bleach
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
not-affected
focal
needed
eoan
ignored
bionic
needed
xenial
needed
trusty
dne
Common Weakness Enumeration
References
https://advisory.checkmarx.net/advisory/CX-2020-4277
https://github.com/mozilla/bleach/security/advisories/GHSA-m6xf-fq7q-8743
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EDQU2SZLZMSSACCBUBJ6NOSRNNBDYFW5/
https://www.checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleach
https://advisory.checkmarx.net/advisory/CX-2020-4277
https://github.com/mozilla/bleach/security/advisories/GHSA-m6xf-fq7q-8743
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EDQU2SZLZMSSACCBUBJ6NOSRNNBDYFW5/
https://www.checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleach