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Vulnerability of Python Bleach: Cross Site Scripting via bleach.clean

Synthesis of the vulnerability 

An attacker can trigger a Cross Site Scripting via bleach.clean of Python Bleach, in order to run JavaScript code in the context of the web site.
Vulnerable products: Debian, openSUSE Leap, SLES.
Severity of this weakness: 2/4.
Creation date: 02/03/2020.
Références of this bulletin: CVE-2020-6802, DSA-4636-1, openSUSE-SU-2020:0308-1, openSUSE-SU-2020:0325-1, VIGILANCE-VUL-31710.

Description of the vulnerability 

An attacker can trigger a Cross Site Scripting via bleach.clean of Python Bleach, in order to run JavaScript code in the context of the web site.
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This security threat impacts software or systems such as Debian, openSUSE Leap, SLES.

Our Vigil@nce team determined that the severity of this computer weakness note is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this computer threat alert.

Solutions for this threat 

Debian 10: new python-bleach packages.
New packages are available:
  Debian 10: python-bleach 3.1.1-0+deb10u1

openSUSE Leap 15.1: new python-bleach packages.
New packages are available:
  openSUSE Leap 15.1: python2-bleach 3.1.1-lp151.3.6.1, python3-bleach 3.1.1-lp151.3.6.1

SUSE LE 15: new python-bleach packages.
New packages are available:
  SUSE LE 15 SP1: python2-bleach 3.1.1-bp151.4.4.1, python3-bleach 3.1.1-bp151.4.4.1
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