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CVE-2020-27783

Status Candidate

Overview

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.

Related Files

Red Hat Security Advisory 2021-3254-01
Posted Aug 30, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3254-01 - Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Issues addressed include buffer overflow, code execution, cross site scripting, denial of service, information leakage, integer overflow, and traversal vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution, xss, python
systems | linux, redhat
advisories | CVE-2020-25659, CVE-2020-27619, CVE-2020-27783, CVE-2020-28493, CVE-2020-36242, CVE-2021-20095, CVE-2021-23336, CVE-2021-28957, CVE-2021-29921, CVE-2021-3177, CVE-2021-33503, CVE-2021-3426, CVE-2021-3572
SHA-256 | f49b54d77f89082e96a8e69fc49612163d813deff1eacac5d74e788baf88efbf
Red Hat Security Advisory 2021-2479-01
Posted Jun 17, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2479-01 - Red Hat OpenShift Container Storage is software-defined storage integrated with and optimized for the Red Hat OpenShift Container Platform. Red Hat OpenShift Container Storage is a highly scalable, production-grade persistent storage for stateful applications running in the Red Hat OpenShift Container Platform. Issues addressed include a cross site scripting vulnerability.

tags | advisory, xss
systems | linux, redhat
advisories | CVE-2016-10228, CVE-2017-14502, CVE-2019-13012, CVE-2019-14866, CVE-2019-25013, CVE-2019-2708, CVE-2019-3842, CVE-2019-9169, CVE-2020-13434, CVE-2020-13543, CVE-2020-13584, CVE-2020-13776, CVE-2020-15358, CVE-2020-24977, CVE-2020-25659, CVE-2020-25678, CVE-2020-26116, CVE-2020-26137, CVE-2020-27618, CVE-2020-27619, CVE-2020-27783, CVE-2020-28196, CVE-2020-29361, CVE-2020-29362, CVE-2020-29363, CVE-2020-36242, CVE-2020-8231
SHA-256 | 407dd58a4d56a1577f85a63f8d3249362ebd855a9d2e9461bef124d76718dfe1
Red Hat Security Advisory 2021-1879-01
Posted May 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1879-01 - Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Issues addressed include buffer overflow, crlf injection, and cross site scripting vulnerabilities.

tags | advisory, overflow, vulnerability, xss, python
systems | linux, redhat
advisories | CVE-2020-26116, CVE-2020-27783, CVE-2021-3177
SHA-256 | 2109b430ba8a08fd747988c6175202b8cfe6305a10d9b9edaebcf76925d3424d
Red Hat Security Advisory 2021-1898-01
Posted May 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1898-01 - lxml is an XML processing library providing access to libxml2 and libxslt libraries using the Python ElementTree API. Issues addressed include a cross site scripting vulnerability.

tags | advisory, xss, python
systems | linux, redhat
advisories | CVE-2020-27783
SHA-256 | 82fcbbb4371ca95edcd9232b90b6f5d371a0ac49c575c47786480a72ef0f6cad
Red Hat Security Advisory 2021-1761-01
Posted May 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1761-01 - Python is an interpreted, interactive, object-oriented programming language that supports modules, classes, exceptions, high-level dynamic data types, and dynamic typing. The python27 packages provide a stable release of Python 2.7 with a number of additional utilities and database connectors for MySQL and PostgreSQL. Issues addressed include buffer overflow, crlf injection, and cross site scripting vulnerabilities.

tags | advisory, overflow, vulnerability, xss, python
systems | linux, redhat
advisories | CVE-2020-26116, CVE-2020-26137, CVE-2020-27783, CVE-2021-3177
SHA-256 | e7c31e13f1fc9bc7fe6d3671e7bc033c0369125a20d45153aa444e9f7c64db8a
Debian Security Advisory 4810-1
Posted Dec 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4810-1 - Yaniv Nizry discovered that the clean module of lxml, Python bindings for libxml2 and libxslt could be bypassed.

tags | advisory, python
systems | linux, debian
advisories | CVE-2020-27783
SHA-256 | 9f5243a3261ccdcaa166ebeebb4f930ac0ca824f46f3d25ea35e733245afc09c
Ubuntu Security Notice USN-4666-2
Posted Dec 11, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4666-2 - USN-4666-1 partially fixed a vulnerability in lxml, but an additional patch was needed. This update provides the corresponding additional patch in order to properly fix the vulnerability. It was discovered that lxml incorrectly handled certain HTML. An attacker could possibly use this issue to cross-site scripting attacks.

tags | advisory, xss
systems | linux, ubuntu
advisories | CVE-2020-27783
SHA-256 | ac4ca768b5ce952dba394cc6b1930615a99b670e0cb573d027161391c298c8cb
Ubuntu Security Notice USN-4666-1
Posted Dec 9, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4666-1 - It was discovered that lxml incorrectly handled certain HTML. An attacker could possibly use this issue to cross-site scripting attacks.

tags | advisory, xss
systems | linux, ubuntu
advisories | CVE-2020-27783
SHA-256 | ca307b3cc7daa751ba08483ab5e7378fedd25111458b26668ab00e31deed2094
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