Vulnerability CVE-2016-9909
Published: 2017-02-22

Description:
The serializer in html5lib before 0.99999999 might allow remote attackers to conduct cross-site scripting (XSS) attacks by leveraging mishandling of the < (less than) character in attribute values.

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Html5lib -> Html5lib 

 References:
http://www.openwall.com/lists/oss-security/2016/12/06/5
http://www.openwall.com/lists/oss-security/2016/12/08/8
http://www.securityfocus.com/bid/95132
https://github.com/html5lib/html5lib-python/commit/9b8d8eb5afbc066b7fac9390f5ec75e5e8a7cab7
https://github.com/html5lib/html5lib-python/issues/11
https://github.com/html5lib/html5lib-python/issues/12
https://html5lib.readthedocs.io/en/latest/changes.html#b9
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