CVE-2020-27783
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.
- Score
- CVSS 3.1 6.1 Medium
- Status
- Modified - secalert@redhat.com
- Published
- 2020-12-03
- Last modified
- 2025-12-17
- Weaknesses
- CWE-79
Affected products
- Debian Linux (Debian)
- Fedora (Fedoraproject)
- Lxml (Lxml)
- Snapcenter (Netapp)
- Communications Offline Mediation Controller (Oracle)
- Zfs Storage Appliance Kit (Oracle)
- Enterprise Linux (Redhat)
- Software Collections (Redhat)
References
- https://advisory.checkmarx.net/advisory/CX-2020-4286
- https://bugzilla.redhat.com/show_bug.cgi?id=1901633
- https://lists.debian.org/debian-lts-announce/2020/12/msg00028.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JKG67GPGTV23KADT4D4GK4…
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMHVKRUT22LVWNL3TB7HPS…
- https://security.netapp.com/advisory/ntap-20210521-0003/
- https://www.debian.org/security/2020/dsa-4810
- https://www.oracle.com//security-alerts/cpujul2021.html
