medium6.1
CVE-2016-9909
Improper Neutralization of Input During Web Page Generation in html5lib
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | html5lib | < 0.999999999 | 0.999999999 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Html5lib | Html5lib | through 0.99999999 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- 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
- https://github.com/advisories/GHSA-v9v9-xffq-rwr4
- https://nvd.nist.gov/vuln/detail/CVE-2016-9909
- https://github.com/pypa/advisory-database/tree/main/vulns/html5lib/PYSEC-2017-14.yaml
- https://web.archive.org/web/20161229134056/http://www.securityfocus.com/bid/95132