CVE-2020-27783
Published: August 31, 2023Last modified: August 31, 2023
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.1 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | REQUIRED |
| Scope | CHANGED |
| Confidentiality | LOW |
| Integrity impact | LOW |
| Availability impact | NONE |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | py3-lxml | Not affected (4.9.3-r1) |
| Stream | py3-lxml | Not affected (4.9.3-r0) |
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/JKG67GPGTV23KADT4D4GK4RMHSO4CIQL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMHVKRUT22LVWNL3TB7HPSDHJT74Q3JK/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/JKG67GPGTV23KADT4D4GK4RMHSO4CIQL/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/TMHVKRUT22LVWNL3TB7HPSDHJT74Q3JK/
- https://security.netapp.com/advisory/ntap-20210521-0003/
- https://www.debian.org/security/2020/dsa-4810
- https://www.oracle.com//security-alerts/cpujul2021.html