Prototype Pollution in fullpage.js
fullPage utils are available to developers using window.fp_utils. They can use these utils for their own use-case (other than fullPage) as well. However, one of the utils deepExtend is vulnerable to Prototype Pollution vulnerability.
Javascript is "prototype" language which means when a new "object" is created, it carries the predefined properties and methods of an "object" with itself like toString, constructor etc. By using prototype-pollution vulnerability, an attacker can overwrite/create the property of that "object" type. If the victim developer has used that property anywhere in the code, then it will have severe effect on the application.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | fullpage.js | < 4.0.2 | 4.0.2 |
References
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L- Weakness (CWE)
CWE-1321- Platform
- npm
- Package
fullpage.js- Disclosed
- 12.04.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-vpgw-ffh3-648h - CC BY 4.0
Vulnerability history: fullpage.js
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 04.2022 04.2022
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 1
Disclosures per year
- 2022: 2
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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