CVE-2020-28478
Prototype Pollution
This affects the package gsap before 3.6.0.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Prototype Pollution
This affects the package gsap before 3.6.0.
- Record
CVE-2020-28478- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
EUVDEUVD-2021-0494
This affects the package gsap before 3.6.0.
- Record
EUVD-2021-0494- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6g8v-hpgw-h2v7
Prototype pollution in gsap
There is a prototype pollution vulnerability in gsap which affects all versions before 3.6.0.
- Record
GHSA-6g8v-hpgw-h2v7- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
NVD
This affects the package gsap before 3.6.0.
- Record
CVE-2020-28478- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
OSVGHSA-6g8v-hpgw-h2v7
Prototype pollution in gsap
There is a prototype pollution vulnerability in gsap which affects all versions before 3.6.0.
- Record
GHSA-6g8v-hpgw-h2v7- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gsapnpm |
before 3.6.0 | 3.6.0 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | NetJBS/CVE-2020-28478--PoC | 2023-01-17 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-28478 is a high vulnerability (CVSS 7.5) in Greensock Animation Platform, published January 19, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.62%, the 76th percentile. Fixed in gsap 3.6.0.
References
snyk.io/vuln/SNYK-JS-GSAP-1054614
github.com/greensock/GSAP/blob/master/src/gsap-core.js%23L147
nvd.nist.gov/vuln/detail/CVE-2020-28478
npmjs.com/package/gsap/v/3.6.0