CVE-2020-27783
Published: 03 December 2020
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.
Priority
Medium
CVSS 3 base score: 6.1
Status
| Package | Release | Status |
|---|---|---|
|
lxml Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.6.2-1)
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Released
(4.5.0-1ubuntu0.2)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.2.1-1ubuntu0.3)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(3.5.0-1ubuntu0.3)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(3.3.3-1ubuntu0.2+esm2)
|
|
|
Patches: Upstream: https://github.com/lxml/lxml/commit/89e7aad6e7ff9ecd88678ff25f885988b184b26e Upstream: https://github.com/lxml/lxml/commit/a105ab8dc262ec6735977c25c13f0bdfcdec72a7 |
||
Notes
| Author | Note |
|---|---|
| sbeattie | according to lxml upstream, first commit does not fix completely, second commit is needed/fixes issue better. |