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This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulnerability

SYNTHESIS OF THE VULNERABILITY

Impacted products: Debian, Fedora, Ubuntu.

Severity: 2/4.

Consequences: client access/rights.

Provenance: document.

Confidence: confirmed by the editor (5/5).

Creation date: 27/11/2020.

DESCRIPTION OF THE VULNERABILITY

An attacker can trigger a Cross Site Scripting via escapes of
LXML, in order to run JavaScript code in the context of the web
site.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/LXML-Cross-Site-Scripting-via-escape-33985