VDB
PYSEC-2020-62
PYSEC-2020-62
PUBLISHED
CVSS 9.300000190734863 CRITICAL
A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly imitate browsers, which caused different behaviors between the sanitizer and the user's page. A remote attacker could exploit this flaw to run arbitrary HTML/JS code.
Risk Scores
CVSS 4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| PyPI | lxml | 1.2, 1.2, 1.2.1 |
Timeline
- Dec 3, 2020 CVE Published
- Nov 8, 2023 CVE Updated
- May 1, 2026 Distribution Patch
- May 1, 2026 Security Advisory
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1901633 report
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JKG67GPGTV23KADT4D4GK4RMHSO4CIQL/ url
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TMHVKRUT22LVWNL3TB7HPSDHJT74Q3JK/ url
- https://advisory.checkmarx.net/advisory/CX-2020-4286 advisory
- https://github.com/advisories/GHSA-pgww-xf46-h92r advisory
- https://www.debian.org/security/2020/dsa-4810 advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00028.html advisory