The vulnerability in the lxml.html.clean module’s lxml/html/clean.py file allows a attacker to execute cross-site scripting attacks.

The vulnerability in the lxml.html.clean module’s lxml/html/clean.py file relates to the lack of measures taken to protect the structure of web pages. Exploiting this vulnerability allows a remote attacker to perform cross-site scripting attacks...

AZL-6806 CVE-2018-19787 affecting package python-lxml for versions less than 4.8.0-1

An issue was discovered in lxml before 4.2.5. lxml/html/clean.py in the lxml.html.clean module does not remove javascript: URLs that use escaping, allowing a remote attacker to conduct XSS attacks, as demonstrated by "j a v a s c r i p t:" in Internet Explorer. This is a similar issue to...

UBUNTU-CVE-2018-19787

An issue was discovered in lxml before 4.2.5. lxml/html/clean.py in the lxml.html.clean module does not remove javascript: URLs that use escaping, allowing a remote attacker to conduct XSS attacks, as demonstrated by "j a v a s c r i p t:" in Internet Explorer. This is a similar issue to...

USN-2217-1 lxml vulnerability

It was discovered that the lxml.html.clean module incorrectly stripped control characters. An attacked could potentially exploit this to conduct cross-site scripting XSS attacks...