CVE-2020-28482
Cross-site Request Forgery (CSRF)
This affects the package fastify-csrf before 3.0.0. 1. The generated cookie used insecure defaults, and did not have the httpOnly flag on: cookieOpts: { path: '/', sameSite: true } 2. The CSRF token was available in the GET query parameter
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Cross-site Request Forgery (CSRF)
This affects the package fastify-csrf before 3.0.0. 1. The generated cookie used insecure defaults, and did not have the httpOnly flag on: cookieOpts: { path: '/', sameSite: true } 2. The CSRF token was available in the GET query parameter
- Record
CVE-2020-28482- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N - Updated
- 2026-11-02
EUVDEUVD-2021-0487
This affects the package fastify-csrf before 3.0.0. 1. The generated cookie used insecure defaults, and did not have the httpOnly flag on: cookieOpts: { path: '/', sameSite: true } 2. The CSRF token was available in the GET query parameter
- Record
EUVD-2021-0487- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-49wp-qq6x-g2rf
Cross-site Request Forgery in fastify-csrf
The package fastify-csrf before 3.0.0 has a set of issues that affect its ability to do CSRF protection.
- The generated cookie used insecure defaults, and did not have the httpOnly flag on:
cookieOpts: { path: '/', sameSite: true } - The CSRF token was available in the GET query parameter
- Record
GHSA-49wp-qq6x-g2rf- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-352
- Updated
- 2026-11-02
NVD
This affects the package fastify-csrf before 3.0.0. 1. The generated cookie used insecure defaults, and did not have the httpOnly flag on: cookieOpts: { path: '/', sameSite: true } 2. The CSRF token was available in the GET query parameter
- Record
CVE-2020-28482- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-200, CWE-732
- Updated
- 2026-11-02
OSV
This affects the package fastify-csrf before 3.0.0. 1. The generated cookie used insecure defaults, and did not have the httpOnly flag on: cookieOpts: { path: '/', sameSite: true } 2. The CSRF token was available in the GET query parameter
- Record
CVE-2020-28482- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-49wp-qq6x-g2rf
Cross-site Request Forgery in fastify-csrf
The package fastify-csrf before 3.0.0 has a set of issues that affect its ability to do CSRF protection.
- The generated cookie used insecure defaults, and did not have the httpOnly flag on:
cookieOpts: { path: '/', sameSite: true } - The CSRF token was available in the GET query parameter
- Record
GHSA-49wp-qq6x-g2rf- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-352
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
fastify-csrfnpm |
before 3.0.0 | 3.0.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-28482 is a medium vulnerability (CVSS 5.9) in Fastify Fastify-csrf, published January 19, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.99%, the 62nd percentile. Fixed in fastify-csrf 3.0.0.