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CVE-2020-27783

Published: Dec 3, 2020Updated: Dec 17, 2025 Sources: CVE List NVD GHSA BDUCWE-79
6.1MEDIUM
NVD MITRE
EPSS Score
3.9%
Top 10.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
Astra Linux Common EditionOn-premOS
Operating Systems / linux-distro
Astra Linux Special Edition для «Эльбрус»On-premOS
Operating Systems / linux-distro
ПК "ALD Pro"On-prem
Operating Systems / linux-distro
redhat
commercial·USaka red hat
software collectionsOn-prem
Operating Systems / linux-distro
enterprise linuxOn-premOS
Operating Systems / linux-distro
oracle
commercial·USaka oracle corp.
communications offline mediation controllerOn-premWeb App
Databases / data-warehouse-analytics
zfs storage appliance kitOn-premDatabase
Databases / data-warehouse-analytics
lxml
oss-projectaka lxml/lxml
lxmlLibrary
OSS Libraries / generic-library
debian
oss-project·GBaka debian gnu/linux
debian linuxOn-premOS
Operating Systems / linux-distro
fedoraproject
oss-project·USaka fedora project
fedoraOn-premOS
Operating Systems / linux-distro
and 7 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2020-27783?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://bugzilla.redhat.com/show_bug.cgi?id=1901633
bugzilla.redhat.com
https://www.debian.org/security/2020/dsa-4810
debian.org
https://lists.debian.org/debian-lts-announce/2020/12/msg00028.html
lists.debian.org
and 27 more references View all →

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