CVE-2021-43818
HTML Cleaner allows crafted and SVG embedded scripts to pass through
Vexday Risk Score
21Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 8.2EPSS 2.5%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Ciclo de vida
13 dic 2021Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, 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 4.6.5 to receive a patch. There are no known workarounds available.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N
Productos afectados
lxml · lxml¿Quieres saber si tu infraestructura está expuesta a esto?
Hablar con TrueHacking →Referencias
https://github.com/lxml/lxml/commit/12fa9669007180a7bb87d990c375cf91ca5b664ahttps://github.com/lxml/lxml/commit/a3eacbc0dcf1de1c822ec29fb7d090a4b1712a9c#diff-59130575b4fb2932c957db2922977d7d89afb0b2085357db1a14615a2fcad776https://github.com/lxml/lxml/commit/f2330237440df7e8f39c3ad1b1aa8852be3b27c0https://github.com/lxml/lxml/security/advisories/GHSA-55x5-fj6c-h6m8https://lists.debian.org/debian-lts-announce/2021/12/msg00037.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TUIS2KE3HZ2AAQKXFLTJFZPP2IFHJTC7/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2XMOM5PFT6U5AAXY6EFNT5JZCKKHK2V/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WZGNET2A4WGLSUXLBFYKNC5PXHQMI3I7/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQ4SPKJX3RRJK4UWA6FXCRHD2TVRQI44/https://security.gentoo.org/glsa/202208-06https://security.netapp.com/advisory/ntap-20220107-0005/https://www.debian.org/security/2022/dsa-5043