CVE-2021-43818: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
(updated )
lxml is a library for processing XML and HTML in the Python language., the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml to receive a patch. There are no known workarounds available.
References
- github.com/lxml/lxml/commit/12fa9669007180a7bb87d990c375cf91ca5b664a
- github.com/lxml/lxml/commit/a3eacbc0dcf1de1c822ec29fb7d090a4b1712a9c
- github.com/lxml/lxml/commit/f2330237440df7e8f39c3ad1b1aa8852be3b27c0
- github.com/lxml/lxml/security/advisories/GHSA-55x5-fj6c-h6m8
- nvd.nist.gov/vuln/detail/CVE-2021-43818
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