CVE-2016-9909

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.

CVSS v3 6.1 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector : AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
http://www.openwall.com/lists/oss-security/2016/12/06/5	Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/08/8	Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/95132	Third Party Advisory VDB Entry
https://github.com/html5lib/html5lib-python/commit/9b8d8eb5afbc066b7fac9390f5ec75e5e8a7cab7	Patch
https://github.com/html5lib/html5lib-python/issues/11	Vendor Advisory
https://github.com/html5lib/html5lib-python/issues/12	Vendor Advisory
https://html5lib.readthedocs.io/en/latest/changes.html#b9	Release Notes
http://www.openwall.com/lists/oss-security/2016/12/06/5	Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/08/8	Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/95132	Third Party Advisory VDB Entry
https://github.com/html5lib/html5lib-python/commit/9b8d8eb5afbc066b7fac9390f5ec75e5e8a7cab7	Patch
https://github.com/html5lib/html5lib-python/issues/11	Vendor Advisory
https://github.com/html5lib/html5lib-python/issues/12	Vendor Advisory
https://html5lib.readthedocs.io/en/latest/changes.html#b9	Release Notes

Configurations

Configuration 1 (hide)

cpe:2.3:a:html5lib:html5lib:*:1.0b8:*:*:*:*:*:*

History

No history.

Information

Published : 2017-02-22 16:59

Updated : 2025-04-20 01:37

NVD link : CVE-2016-9909

Mitre link : CVE-2016-9909

CVE.ORG link : CVE-2016-9909

JSON object : View

Products Affected

html5lib

html5lib

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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