CVE-2018-19787: PYSEC-2018-12 - 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 esc

CVE-2018-19787 · Severity: low · CVSS 3 · Published 2018-12-02

Technologies: lxml (PyPI). Vendors: PyPI.

Executive brief

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 CVE-2014-3146.

Affected products

PyPI lxml

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