Is CVE-2021-21310 in the CISA KEV catalog?

No. CVE-2021-21310 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-21310?

CVE-2021-21310 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2021-21310?

CVE-2021-21310 has an EPSS score of 1.67% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-21310?

Upgrade next-auth to 3.3.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-21310

MEDIUMEPSS 74th pctl

6.1

CVSS v3

NVD

Description

NextAuth.js (next-auth) is am open source authentication solution for Next.js applications. In next-auth before version 3.3.0 there is a token verification vulnerability. Implementations using the Prisma database adapter in conjunction with the Email provider are impacted. Implementations using the Email provider with the default database adapter are not impacted. Implementations using the Prisma database adapter but not using the Email provider are not impacted. The Prisma database adapter was checking the verification token, but was not verifying the email address associated with that token. This made it possible to use a valid token to sign in as another user when using the Prima adapter in conjunction with the Email provider. This issue is specific to the community supported Prisma adapter. This issue is fixed in version 3.3.0.

CWE-290

How to fix

Remediation Available

next-authNVD

Affected:< 3.3.0Fixed in:3.3.0CVE-2021-21310derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N

Exploit Intelligence

1.67%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Exploit1

github.com

Third-Party Advisory2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.