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[Security] Bump prismjs from 1.19.0 to 1.21.0 #25

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Bumps prismjs from 1.19.0 to 1.21.0. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Cross-Site Scripting in Prism

Impact

The easing preview of the Previewers plugin has an XSS vulnerability that allows attackers to execute arbitrary code in Safari and Internet Explorer.

This impacts all Safari and Internet Explorer users of Prism >=v1.1.0 that use the Previewers plugin (>=v1.10.0) or the Previewer: Easing plugin (v1.1.0 to v1.9.0).

Patches

This problem is patched in v1.21.0.

Workarounds

To workaround the issue without upgrading, disable the easing preview on all impacted code blocks. You need Prism v1.10.0 or newer to apply this workaround.

References

The vulnerability was introduced by this commit on Sep 29, 2015 and fixed by Masato Kinugawa (mui#2506).

For more information

If you have any questions or comments about this advisory, please open an issue.

Affected versions: >= 1.1.0 < 1.21.0

Release notes

Sourced from prismjs's releases.

v1.21.0

Release 1.21.0

v1.20.0

Release 1.20.0

Changelog

Sourced from prismjs's changelog.

1.21.0 (2020-08-06)

New components

Updated components

Commits

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Bumps [prismjs](https://github.com/PrismJS/prism) from 1.19.0 to 1.21.0. **This update includes a security fix.**
- [Release notes](https://github.com/PrismJS/prism/releases)
- [Changelog](https://github.com/PrismJS/prism/blob/master/CHANGELOG.md)
- [Commits](PrismJS/prism@v1.19.0...v1.21.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
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The following labels could not be found: dependencies, worktree.

@dependabot-preview dependabot-preview bot added the security Pull requests that address a security vulnerability label Aug 7, 2020
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Dependabot tried to update this pull request, but something went wrong. We're looking into it, but in the meantime you can retry the update by commenting @dependabot rebase.

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Superseded by #44.

@dependabot-preview dependabot-preview bot deleted the dependabot/npm_and_yarn/prismjs-1.21.0 branch March 1, 2021 21:01
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