CVE-2016-9909: Improper Neutralization of Input During Web Page Generation in html5lib
(updated )
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.
References
- github.com/advisories/GHSA-v9v9-xffq-rwr4
- github.com/html5lib/html5lib-python
- github.com/html5lib/html5lib-python/commit/9b8d8eb5afbc066b7fac9390f5ec75e5e8a7cab7
- github.com/html5lib/html5lib-python/issues/11
- github.com/html5lib/html5lib-python/issues/12
- github.com/pypa/advisory-database/tree/main/vulns/html5lib/PYSEC-2017-14.yaml
- html5lib.readthedocs.io/en/latest/changes.html
- nvd.nist.gov/vuln/detail/CVE-2016-9909
- web.archive.org/web/20161229134056/http://www.securityfocus.com/bid/95132
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