CVSS 3.1
6.1 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NCVE-2026-28350
Medium (6.1) in fedoralovespython lxml html clean. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in lxml-html-clean 0.4.4.
lxml_html_clean is a project for HTML cleaning functionalities copied from `lxml.html.clean`. Prior to version 0.4.4, the <base> tag passes through the default Cleaner configuration. While page_structure=True removes html, head, and title tags, there is no specific handling for <base>, allowing an attacker to inject it and hijack relative links on the page. This issue has been patched in version 0.4.4.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-31)
- CWE
- CWE-116
- Published
- Modified
- Record from
- the NVD, synced
Affected
- fedoralovespython:lxml_html_clean
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-xvp8-3mhv-424c | PyPI | lxml-html-clean | <0.4.4 | 0.4.4 |
| PYSEC-2026-2202 | PyPI | lxml-html-clean | <0.4.4 | 0.4.4 |