GHSA-f34m-x9pj-62vq
Cross-Site Scripting Vulnerability in @joeattardi/emoji-button
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @joeattardi/emoji-button | < 4.6.2 | 4.6.2 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
There are two vectors for XSS attacks with versions of @joeattardi/emoji-button before 4.6.2:
- A URL for a custom emoji
- An i18n string
In both of these cases, a value can be crafted such that it can insert a `script` tag into the page and execute malicious code.
### Patches
This vulnerability is fixed starting in version 4.6.2. This is resolved by properly escaping strings that are inserted into the HTML document.
### Workarounds
There is no workaround other than upgrading to a non-vulnerable version.
### Credit
This issue was discovered by GitHub team member [@erik-krogh (Erik Krogh Kristensen)](https://github.com/erik-krogh) and was reported by the GitHub Security Lab team.
References
External links from the advisory. They lead to third-party sites.
- https://github.com/joeattardi/emoji-button/security/advisories/GHSA-f34m-x9pj-62vq
- https://nvd.nist.gov/vuln/detail/CVE-2021-43785
- https://github.com/joeattardi/emoji-button/commit/05970c09180cd27fff493e998ac5bf0468b1bb16
- https://github.com/joeattardi/emoji-button/commit/fe54bef107eb3f74873a4018f2ff49fa124c6a2e
- https://github.com/joeattardi/emoji-button