Summary
lxml is an XML processing library providing access to libxml2 and libxslt libraries using the Python ElementTree API.
Security Fix(es):
* python-lxml: Missing input sanitization for formaction HTML5 attributes may lead to XSS (CVE-2021-28957)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Rocky Linux 8.5 Release Notes linked from the References section.
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Rocky Linux · 8 | python-lxml | 0:4.2.3-3.el8 |
Vulnerabilities 1
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Medium 6.1
lxml vulnerable to Cross-Site Scripting
An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling the safe_attrs_only and forms arguments, the Cleaner class does not remove the formaction attribute allowing for JS to bypass the sanitizer. A remote attac…
References
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report
https://bugzilla.redhat.com/show_bug.cgi?id=1941534