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fix(deps): update dependency fast-xml-parser to v4.2.5 [security] #876

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merged 1 commit into from
Aug 29, 2023

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@renovate renovate bot commented Aug 29, 2023

Mend Renovate

This PR contains the following updates:

Package Change Age Adoption Passing Confidence
fast-xml-parser 4.2.4 -> 4.2.5 age adoption passing confidence

GitHub Vulnerability Alerts

GHSA-gpv5-7x3g-ghjv

Summary

This is a comment on GHSA-6w63-h3fj-q4vw and the patches fixing it.

Details

The code which validates a name calls the validator:
https://github.com/NaturalIntelligence/fast-xml-parser/blob/ecf6016f9b48aec1a921e673158be0773d07283e/src/xmlparser/DocTypeReader.js#L145-L153
This checks for the presence of an invalid character. Such an approach is always risky, as it is so easy to forget to include an invalid character in the list. A safer approach is to validate entity names against the XML specification: https://www.w3.org/TR/xml11/#sec-common-syn - an ENTITY name is a Name:

[4]   NameStartChar ::= ":" | [A-Z] | "_" | [a-z] | [#xC0-#xD6] | [#xD8-#xF6] | [#xF8-#x2FF] | [#x370-#x37D] |
                        [#x37F-#x1FFF] | [#x200C-#x200D] | [#x2070-#x218F] | [#x2C00-#x2FEF] | [#x3001-#xD7FF] |
                        [#xF900-#xFDCF] | [#xFDF0-#xFFFD] | [#x10000-#xEFFFF]
[4a]  NameChar ::= NameStartChar | "-" | "." | [0-9] | #xB7 | [#x0300-#x036F] | [#x203F-#x2040]
[5]   Name ::= NameStartChar (NameChar)*

so the safest way to validate an entity name is to build a regex to represent this expression and check whether the name given matches the regex. (Something along the lines of /^[name start char class][name char class]*$/.) There's probably a nice way to simplify the explicit list rather than typing it out verbatim using Unicode character properties, but I don't know enough to do so.


Release Notes

NaturalIntelligence/fast-xml-parser (fast-xml-parser)

v4.2.5

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This PR has been generated by Mend Renovate. View repository job log here.

@hwbllmnn hwbllmnn merged commit f35b12c into master Aug 29, 2023
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@hwbllmnn hwbllmnn deleted the renovate/npm-fast-xml-parser-vulnerability branch August 29, 2023 12:06
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dnlkoch commented Dec 4, 2023

🎉 This PR is included in version 5.2.0 🎉

The release is available on:

Your semantic-release bot 📦🚀

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