Description
The serializer in html5lib before 0.99999999 might allow remote attackers to conduct cross-site scripting (XSS) attacks by leveraging mishandling of special characters in attribute values, a different vulnerability than CVE-2016-9909.
References (7)
Core 7
Core References
Vendor Advisory x_refsource_confirm
https://github.com/html5lib/html5lib-python/issues/12
Release Notes x_refsource_confirm
https://html5lib.readthedocs.io/en/latest/changes.html#b9
Mailing List, Patch, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/12/06/5
Mailing List, Patch, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/12/08/8
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/95132
Patch x_refsource_confirm
https://github.com/html5lib/html5lib-python/commit/9b8d8eb5afbc066b7fac9390f5ec75e5e8a7cab7
Vendor Advisory x_refsource_confirm
https://github.com/html5lib/html5lib-python/issues/11
Scores
CVSS v3
6.1
EPSS
0.0049
EPSS Percentile
65.8%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Details
CWE
CWE-79
Status
published
Products (2)
html5lib/html5lib
< 0.99999999
pypi/html5lib
0 - 0.99999999PyPI
Published
Feb 22, 2017
Tracked Since
Feb 18, 2026