Description
The Snyk Advisor website (https://snyk.io/advisor/) was vulnerable to a stored XSS prior to 28th March 2023. A feature of Snyk Advisor is to display the contents of a scanned package's Readme on its package health page. An attacker could create a package in NPM with an associated markdown README file containing XSS-able HTML tags. Upon Snyk Advisor importing the package, the XSS would run each time an end user browsed to the package's page on Snyk Advisor.
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| advisor | — | 2023-03-28 |
References
Similar Threats
- Unknown MAL-2025-118620
- Unknown MAL-2025-61788
- Unknown MAL-2025-99216
- Medium CVE-2025-20079
- Medium CVE-2024-39284
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