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[Security] Bump bleach from 3.1.0 to 3.1.1 #191

Closed dependabot-preview[bot] closed 4 years ago

dependabot-preview[bot] commented 4 years ago

Bumps bleach from 3.1.0 to 3.1.1. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Moderate severity vulnerability that affects bleach

Impact

A mutation XSS affects users calling bleach.clean with noscript and a raw tag (see below) in the allowed/whitelisted tags option.

Patches

v3.1.1

Workarounds

  • modify bleach.clean calls to not whitelist noscript and one or more of the following raw tags:
title
textarea
script
style
noembed
noframes
iframe
</tr></table> ... (truncated)

Affected versions: < 3.1.1

Changelog

Sourced from bleach's changelog.

Version 3.1.1 (February 13th, 2020)

Security fixes

  • bleach.clean behavior parsing noscript tags did not match browser behavior.

    Calls to bleach.clean allowing noscript and one or more of the raw text tags (title, textarea, script, style, noembed, noframes, iframe, and xmp) were vulnerable to a mutation XSS.

    This security issue was confirmed in Bleach versions v2.1.4, v3.0.2, and v3.1.0. Earlier versions are probably affected too.

    Anyone using Bleach <=v3.1.0 is highly encouraged to upgrade.

    https://bugzilla.mozilla.org/show_bug.cgi?id=1615315

Backwards incompatible changes

None

Features

None

Bug fixes

None

Bleach changes

Commits


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