How severe is CVE-2022-23505?

CVE-2022-23505 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2022-23505 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-23505?

CVE-2022-23505 affects Auth0 Passport-wsfed-saml2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-23505?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-23505 published?

CVE-2022-23505 was published on 2022-12-13 and last updated on 2026-06-17.

CVE-2022-23505

CVE-2022-23505 is a medium-severity vulnerability in Auth0 Passport-wsfed-saml2 with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Auth0 Passport-wsfed-saml2
Published: 2022-12-13
Last modified: 2026-06-17

Description

Passport-wsfed-saml2 is a ws-federation protocol and SAML2 tokens authentication provider for Passport. In versions prior to 4.6.3, a remote attacker may be able to bypass WSFed authentication on a website using passport-wsfed-saml2. A successful attack requires that the attacker is in possession of an arbitrary IDP signed assertion. Depending on the IDP used, fully unauthenticated attacks (e.g without access to a valid user) might also be feasible if generation of a signed message can be triggered. This issue is patched in version 4.6.3. Use of SAML2 authentication instead of WSFed is a workaround.

Frequently asked questions

What is CVE-2022-23505?: Passport-wsfed-saml2 is a ws-federation protocol and SAML2 tokens authentication provider for Passport. In versions prior to 4.6.3, a remote attacker may be able to bypass WSFed authentication on a website using passport-wsfed-saml2. A successful attack requires that the attacker is in possession of an arbitrary IDP signed assertion. Depending on the IDP used, fully unauthenticated attacks (e.g without access to a valid user) might also be feasible if generation of a signed message can be triggered. This issue is patched in version 4.6.3. Use of SAML2 authentication instead of WSFed is a workaround.
How severe is CVE-2022-23505?: CVE-2022-23505 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2022-23505 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-23505?: CVE-2022-23505 affects Auth0 Passport-wsfed-saml2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-23505?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-23505 published?: CVE-2022-23505 was published on 2022-12-13 and last updated on 2026-06-17.

References

https://github.com/auth0/passport-wsfed-saml2/security/advisories/GHSA-ppjq-qxhx-m25f

Affected products (1)

cpe:2.3:a:auth0:passport-wsfed-saml2:*:*:*:*:*:*:*:*

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