CVE-2020-27783
Medium
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.
SeverityMedium
CVSS6.1
Exploit probability—
Product
Lxml
PublishedDec 3, 2020
First seenDec 3, 2020
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- lxml lxml4.6.2 or later
- lxml4.6.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| lxml lxml | 1.2 ≤ v < 4.6.2 | 4.6.2 |
| redhat software_collections | No range specified | — |
| redhat enterprise_linux | 8.0 | — |
| debian debian_linux | 9.0, 10.0 | — |
| fedoraproject fedora | 32, 33 | — |
| netapp snapcenter | No range specified | — |
| oracle communications_offline_mediation_controller | 12.0.0.3.0 | — |
| oracle zfs_storage_appliance_kit | 8.8 | — |
| lxmlPyPI | v < 4.6.2, 1.2 ≤ v < 4.6.2 | 4.6.2 |
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