[Security] Bump rexml from 3.2.4 to 3.2.5 in /backend

[dependabot-preview[bot]]

Bumps rexml from 3.2.4 to 3.2.5. This update includes a security fix.

Vulnerabilities fixed

Sourced from The Ruby Advisory Database.

XML round-trip vulnerability in REXML When parsing and serializing a crafted XML document, REXML gem (including the one bundled with Ruby) can create a wrong XML document whose structure is different from the original one.

Patched versions: >= 3.2.5 Unaffected versions: none

Changelog

Sourced from rexml's changelog.

3.2.5 - 2021-04-05 {#version-3-2-5}

Improvements

• Add more validations to XPath parser.

• require "rexml/docuemnt" by default. [GitHub#36][Patch by Koichi ITO]

• Don't add #dcloe method to core classes globally. [GitHub#37][Patch by Akira Matsuda]

• Add more documentations. [Patch by Burdette Lamar]

• Added REXML::Elements#parent. [GitHub#52][Patch by Burdette Lamar]

Fixes

• Fixed a bug that REXML::DocType#clone doesn't copy external ID information.

• Fixed round-trip vulnerability bugs. See also: https://www.ruby-lang.org/en/news/2021/04/05/xml-round-trip-vulnerability-in-rexml-cve-2021-28965/ [HackerOne#1104077][CVE-2021-28965][Reported by Juho Nurminen]

Thanks

• Koichi ITO

• Akira Matsuda

• Burdette Lamar

• Juho Nurminen

Commits

• a622645 Add 3.2.5 entry
• 3c137eb Fix a parser bug that some data may be ignored before DOCTYPE
• 9b311e5 Fix a bug that invalid document declaration may be accepted
• f9d88e4 Fix a bug that invalid document declaration may be generated
• f7bab89 Fix a bug that invalid element end may be accepted
• 6a250d2 Fix a bug that invalid element start may be accepted
• 2fe62e2 Fix a bug that invalid notation declaration may be accepted
• a659c63 Fix a bug that invalid notation declaration may be generated
• 790dd11 Use ruby/setup-ruby (#66)
• eda1b20 Clean up and enhance high-level RDoc (#65)
• Additional commits viewable in compare view

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