CVSS 3.0
6.1 mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NCVE-2016-9910
Medium (6.1) in html5lib html5lib. EPSS 2.2% chance of exploitation in the next 30 days. Fixed in html5lib 0.99999999, 0.999999999.
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.
Severity
- EPSS
- 2.2% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)
- CWE
- CWE-79
- Published
- Modified
- Record from
- the NVD, synced
Affected
- html5lib:html5lib
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-8f6m-gfq9-g33v | PyPI | html5lib | <0.99999999 | 0.99999999 |
| PYSEC-2017-15 | PyPI | html5lib | <0.999999999 | 0.999999999 |