[Security] Bump markdown2 from 2.3.6 to 2.3.9

[dependabot-preview]

Bumps markdown2 from 2.3.6 to 2.3.9. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

XSS in python-markdown2 python-markdown2 through 2.3.8 allows XSS because element names are mishandled unless a \w+ match succeeds. For example, an attack might use elementname@ or elementname- with an onclick attribute.

Affected versions: <= 2.3.8

Changelog

Sourced from markdown2's changelog.

python-markdown2 2.3.9

• [pull #335] Added header support for wiki tables
• [pull #336] Reset _toc when convert is run
• [pull #353] XSS fix
• [pull #350] XSS fix

python-markdown2 2.3.8

• [pull #317] Temporary fix to issue #150
• [pull #319] Stop XML escaping the body of a link
• [pull #322] Don't auto link patterns surrounded by triple quotes
• [pull #324] Add class configurability to the enclosing tag
• [pull #328] Accept [X] as marked task

python-markdown2 2.3.7

• [pull #306] Drop support for legacy Python versions
• [pull #307] Fix syntax highlighting test cases that depend on Pygments output
• [pull #308] Add support for Python 3.7
• [pull #304] Add Wheel package support
• [pull #312] Fix toc_depth initialization regression
• [pull #315] XSS fix

Commits

• 9bd5694 prepare for 2.3.9 release
• 5b5bfe9 Changes
• 1353bae Merge pull request #350 from zoo-digital/issue_341
• 06fe2df Changes and contributors
• aa06927 Merge pull request #353 from zoo-digital/issue_348
• 0c05438 Better fix for issue 348
• 9144d0f Fix for issue 348 - incomplete tags with punctuation after as part of the tag...
• 5db3e6e Issue 341 - XSS in link text
• 4d2fc79 Remove 3.4, add 3.8
• 55ba78e Fixed code highlighting unit tests
• Additional commits viewable in compare view

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