CVE-2021-28957
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.1epss 4.0%
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 attacker could exploit this flaw to run arbitrary JS code on users who interact with incorrectly sanitized HTML. This issue is patched in lxml 4.6.3.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Produtos afetados
n/a · n/aReferências
https://bugs.launchpad.net/lxml/+bug/1888153https://github.com/lxml/lxml/commit/a5f9cb52079dc57477c460dbe6ba0f775e14a999https://github.com/lxml/lxml/pull/316/commits/10ec1b4e9f93713513a3264ed6158af22492f270https://lists.debian.org/debian-lts-announce/2021/03/msg00031.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3C2R44VDUY7FJVMAVRZ2WY7XYL4SVN45/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XXN3QPWCTQVOGW4BMWV3AUUZZ4NRZNSQ/https://security.gentoo.org/glsa/202208-06https://security.netapp.com/advisory/ntap-20210521-0004/https://www.debian.org/security/2021/dsa-4880https://www.oracle.com/security-alerts/cpuoct2021.html