Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Update sanitize requirement from >= 4.6.3, < 5.3.0 to >= 4.6.3, < 6.1.0 #7

Open
wants to merge 1 commit into
base: master
Choose a base branch
from

Conversation

dependabot[bot]
Copy link

@dependabot dependabot bot commented on behalf of github Jul 6, 2023

Updates the requirements on sanitize to permit the latest version.

Release notes

Sourced from sanitize's releases.

v6.0.2

Bug Fixes

  • CVE-2023-36823: Fixed an HTML+CSS sanitization bypass that could allow XSS (cross-site scripting). This issue affects Sanitize versions 3.0.0 through 6.0.1.

    When using Sanitize's relaxed config or a custom config that allows <style> elements and one or more CSS at-rules, carefully crafted input could be used to sneak arbitrary HTML through Sanitize.

    See the following security advisory for additional details: GHSA-f5ww-cq3m-q3g7

    Thanks to @​cure53 for finding this issue.

v6.0.1

Bug Fixes

  • Sanitize now always removes <noscript> elements and their contents, even when noscript is in the allowlist.

    This fixes a sanitization bypass that could occur when noscript was allowed by a custom allowlist. In this scenario, carefully crafted input could sneak arbitrary HTML through Sanitize, potentially enabling an XSS (cross-site scripting) attack.

    Sanitize's default configs don't allow <noscript> elements and are not vulnerable. This issue only affects users who are using a custom config that adds noscript to the element allowlist.

    The root cause of this issue is that HTML parsing rules treat the contents of a <noscript> element differently depending on whether scripting is enabled in the user agent. Nokogiri doesn't support scripting so it follows the "scripting disabled" rules, but a web browser with scripting enabled will follow the "scripting enabled" rules. This means that Sanitize can't reliably make the contents of a <noscript> element safe for scripting enabled browsers, so the safest thing to do is to remove the element and its contents entirely.

    See the following security advisory for additional details: GHSA-fw3g-2h3j-qmm7

    Thanks to David Klein from TU Braunschweig (@​leeN) for reporting this issue.

  • Fixed an edge case in which the contents of an "unescaped text" element (such as <noembed> or <xmp>) were not properly escaped if that element was allowlisted and was also inside an allowlisted <math> or <svg> element.

    The only way to encounter this situation was to ignore multiple warnings in the readme and create a custom config that allowlisted all the elements involved, including <math> or <svg>. If you're using a default config or if you heeded the warnings about MathML and SVG not being supported, you're not affected by this issue.

    Please let this be a reminder that Sanitize cannot safely sanitize MathML or SVG content and does not support this use case. The default configs don't allow MathML or SVG elements, and allowlisting MathML or SVG elements in a custom config may create a security vulnerability in your application.

    Documentation has been updated to add more warnings and to make the existing warnings about this more prominent.

    Thanks to David Klein from TU Braunschweig (@​leeN) for reporting this issue.

v6.0.0

Potentially Breaking Changes

  • Ruby 2.5.0 is now the oldest officially supported Ruby version.

  • Sanitize now requires Nokogiri 1.12.0 or higher, which includes Nokogumbo. The separate dependency on Nokogumbo has been removed. [@​lis2 - #211]211

Changelog

Sourced from sanitize's changelog.

6.0.2 (2023-07-06)

Bug Fixes

  • CVE-2023-36823: Fixed an HTML+CSS sanitization bypass that could allow XSS (cross-site scripting). This issue affects Sanitize versions 3.0.0 through 6.0.1.

    When using Sanitize's relaxed config or a custom config that allows <style> elements and one or more CSS at-rules, carefully crafted input could be used to sneak arbitrary HTML through Sanitize.

    See the following security advisory for additional details: GHSA-f5ww-cq3m-q3g7

    Thanks to @​cure53 for finding this issue.

6.0.1 (2023-01-27)

Bug Fixes

  • Sanitize now always removes <noscript> elements and their contents, even when noscript is in the allowlist.

    This fixes a sanitization bypass that could occur when noscript was allowed by a custom allowlist. In this scenario, carefully crafted input could sneak arbitrary HTML through Sanitize, potentially enabling an XSS (cross-site scripting) attack.

    Sanitize's default configs don't allow <noscript> elements and are not vulnerable. This issue only affects users who are using a custom config that adds noscript to the element allowlist.

    The root cause of this issue is that HTML parsing rules treat the contents of a <noscript> element differently depending on whether scripting is enabled in the user agent. Nokogiri doesn't support scripting so it follows the "scripting disabled" rules, but a web browser with scripting enabled will follow the "scripting enabled" rules. This means that Sanitize can't reliably make the contents of a <noscript> element safe for scripting enabled browsers, so the safest thing to do is to remove the element and its contents entirely.

    See the following security advisory for additional details: GHSA-fw3g-2h3j-qmm7

    Thanks to David Klein from TU Braunschweig (@​leeN) for reporting this issue.

  • Fixed an edge case in which the contents of an "unescaped text" element (such as <noembed> or <xmp>) were not properly escaped if that element was

... (truncated)

Commits

Dependabot compatibility score

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.


Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

  • @dependabot rebase will rebase this PR
  • @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
  • @dependabot merge will merge this PR after your CI passes on it
  • @dependabot squash and merge will squash and merge this PR after your CI passes on it
  • @dependabot cancel merge will cancel a previously requested merge and block automerging
  • @dependabot reopen will reopen this PR if it is closed
  • @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
  • @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
  • @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
  • @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
    You can disable automated security fix PRs for this repo from the Security Alerts page.

Updates the requirements on [sanitize](https://github.com/rgrove/sanitize) to permit the latest version.
- [Release notes](https://github.com/rgrove/sanitize/releases)
- [Changelog](https://github.com/rgrove/sanitize/blob/main/HISTORY.md)
- [Commits](rgrove/sanitize@v5.2.3...v6.0.2)

---
updated-dependencies:
- dependency-name: sanitize
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
@dependabot dependabot bot added the dependencies Pull requests that update a dependency file label Jul 6, 2023
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
dependencies Pull requests that update a dependency file
Projects
None yet
Development

Successfully merging this pull request may close these issues.

0 participants