| Package | Affected versions | Patched versions |
|---|---|---|
| previewers | ≥ 1.1.0, < 1.21.0 | 1.21.0 |
| prismjs | ≥ 1.1.0, < 1.21.0 | 1.21.0 |
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).
This problem is patched in v1.21.0.
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.
The vulnerability was introduced by this commit on Sep 29, 2015 and fixed by Masato Kinugawa (#2506).
If you have any questions or comments about this advisory, please open an issue.
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