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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.

🗓️ 30 Jul 2021 07:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 1 Views

An issue in lxml before 4.2.5 allows escaping javascript: URLs to enable remote XSS in Internet Explorer.

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16 Dec 2021 08:00Current
7High risk
Vulners AI Score7
CVSS 24.3
CVSS 36.1
CVSS 3.16.1
EPSS0.04268
SSVC
1